[Windows Mobile Development and Hacking General] CmdKewin:
You can look in the SystemProperty enumeration.

Members

ActiveApplication Gets the name of the application that was previously active and the name of the application that is currently active, separated by the 'Escape' character ('\e').

ActiveSyncStatus Gets ActiveSync's current synchronization state.

CalendarAppointment Gets the current Appointment.

CalendarAppointmentBusyStatus Gets the user's availability (free/busy status) for the time-slot taken by the current Appointment.

CalendarAppointmentCategories Gets the current Appointment's categories.

CalendarAppointmentEndTime Gets the current Appointment's ending time.

CalendarAppointmentHasConflict Gets a value indicating whether the current Appointment has a scheduling conflict with an existing Appointment.

CalendarAppointmentLocation Gets the current Appointment's location.

CalendarAppointmentStartTime Gets the current Appointment's starting time.

CalendarAppointmentSubject Gets the current Appointment's subject.

CalendarEvent Gets the current "All Day Event" Appointment.

CalendarEventBusyStatus Gets the user's availability (free/busy status) for the current "All Day Event".

CalendarEventCategories Gets the categories for the current "All Day Event".

CalendarEventEndTime Gets the ending time of the current "All Day Event" Appointment. This will be the starting day of an Appointment Event that spans multiple days.

CalendarEventHasConflict Gets a value indicating whether the user's availability (free/busy) status conflicts with the current "All Day Event".

CalendarEventLocation Gets the location of the current "All Day Event" Appointment.

CalendarEventStartTime Gets the starting time of the current "All Day Event" Appointment. This will be the starting day of an Appointment Event that spans multiple days.

CalendarEventSubject Gets the subject of the current "All Day Event" Appointment.

CalendarHomeScreenAppointment Gets the Appointment that is currently displayed on the Home Screen.

CalendarHomeScreenAppointmentBusyStatus Gets the user's availability (free/busy status) for the Appointment displayed on the Home Screen.

CalendarHomeScreenAppointmentCategories Gets the categories of the Appointment that is currently displayed on the Home Screen.

CalendarHomeScreenAppointmentEndTime Gets the ending time of the Appointment that is currently displayed on the Home Screen.

CalendarHomeScreenAppointmentHasConflict Gets a value indicating whether the Appointment that is currently displayed on the Home Screen has a scheduling conflict.

CalendarHomeScreenAppointmentLocation Gets the location of the Appointment that is currently displayed on the Home Screen.

CalendarHomeScreenAppointmentStartTime Gets the starting time of the Appointment that is currently displayed on the Home Screen.

CalendarHomeScreenAppointmentSubject Gets the subject of the Appointment that is currently displayed on the Home Screen.

CalendarNextAppointment Gets the next Appointment.

CalendarNextAppointmentBusyStatus Gets the user's availability (e.g., Free, Busy, Tenative, Out of Office) status for the next Appointment.

CalendarNextAppointmentCategories Gets the next Appointment's categories.

CalendarNextAppointmentEnd Gets the ending time of the next Appointment.

CalendarNextAppointmentHasConflict Gets a value indicating whether there is a conflict with the next Appointment.

CalendarNextAppointmentLocation Gets the location of the next Appointment.

CalendarNextAppointmentStart Gets the starting time of the next Appointment.

CalendarNextAppointmentSubject Gets the subject of the next Appointment.

CameraPresent Gets a value indicating whether a camera is attached and enabled.

CarKitPresent Gets a value indicating whether a car kit is present

ConnectionsBluetoothCount Gets a value indicating the number of Bluetooth connections that are currently connected.

ConnectionsBluetoothDescriptions Gets a semicolon delimited string containing the description of each of the Bluetooth connections.

ConnectionsCellularCount Gets a value indicating the number of cellular connections that are currently connected.

ConnectionsCellularDescriptions Gets a semicolon delimited string containing the description of each cellular connection.

ConnectionsCount Gets a value indicating the number of connections that are currently connected.

ConnectionsDesktopCount Gets a value indicating the number of desktop connections that are currently connected.

ConnectionsDesktopDescriptions Gets a semicolon delimited string containing the description of each desktop connection.

ConnectionsModemCount Gets a value indicating the number of modem connections that are currently connected.

ConnectionsModemDescriptions Gets a semicolon delimited string containing the description of each modem connection.

ConnectionsNetworkAdapters Gets a semicolon delimited string containing the adapter name of each network connection.

ConnectionsNetworkCount Gets a value indicating the number of network connections that are currently connected.

ConnectionsNetworkDescriptions Gets a semicolon delimited string containing the description of each network connection.

ConnectionsProxyCount Gets a value indicating the number of network connections that are currently connected.

ConnectionsProxyDescriptions Gets a semicolon delimited string containing the description of each proxy connection.

ConnectionsUnknownCount Gets a value indicating the number of connections of unknown type that are currently connected.

ConnectionsUnknownDescriptions Gets a semicolon delimited string containing the description of each connections of unknown type.

ConnectionsVpnCount Gets a value indicating the number of virtual private network connections that are currently connected.

ConnectionsVpnDescriptions Gets a semicolon delimited string containing the description of each virtual private network connection.

CradlePresent Gets a value indicating whether the device is connected to a cradle.

Date Gets the current date. This Date/Time value changes once per day. Monitor this property to perform actions on a daily basis. Note: Do not use Date to get an accurate clock time; instead, use Time.

DisplayRotation Gets the orientation of the display, specified as the number of degrees, ranging from 0 to 360. Portrait = 0. Landscape = 90 or -90.

HeadsetPresent Gets a value indicating whether a headset is present

KeyboardPresent Gets a value indicating whether a keyboard is attached and enabled.

MediaPlayerAlbumArtist Gets the album artist's name of the currently playing track in Windows Media Player.

MediaPlayerAlbumTitle Gets the album title of the currently playing track in Windows Media Player.

MediaPlayerTrackArtist Gets the artist's name of the currently playing track in Windows Media Player.

MediaPlayerTrackBitrate Gets the title of the track currently playing in Windows Media Player. For example, "128Kbps"

MediaPlayerTrackGenre Gets the genre of the currently playing track in Windows Media Player.

MediaPlayerTrackNumber Gets the number of the current track playing in Windows Media Player.

MediaPlayerTrackTimeElapsed Gets the elapsed time (in milliseconds) of the currently playing track in Windows Media Player.

MediaPlayerTrackTitle Gets the title of the track currently playing in Windows Media Player.

MessagingActiveSyncAccountName Get the name of the Outlook e-mail messaging account.

MessagingActiveSyncEmailUnread Gets the number of unread ActiveSync e-mail messages.

MessagingLastEmailAccountName Gets the name of the e-mail account that was last active.

MessagingMmsAccountName Gets the name of the MMS messaging account.

MessagingMmsUnread Gets the number of unread MMS messages

MessagingOtherEmailUnread Gets the number of unread e-mail messages from all non-ActiveSync messaging accounts.

MessagingSmsAccountName Gets the name of the SMS messaging account.

MessagingSmsUnread Gets the number of unread SMS messages.

MessagingTotalEmailUnread Gets the total number of unread e-mail messages from all POP3/IMAP accounts.

MessagingVoiceMail1Unread Gets the number of unplayed voice mail messages for line 1.

MessagingVoiceMail2Unread Gets the number of unplayed voice mail messages for line 2

MessagingVoiceMailTotalUnread Gets the number of unplayed voice mail messages.

OwnerEmail Gets the mobile device owner's e-mail address.

OwnerName Gets the mobile device owner's name.

OwnerNotes Gets the text notes entered by the owner of the mobile device.

OwnerPhoneNumber Gets the mobile device owner's phone number.

Phone1xRttCoverage Gets a value indicating whether the phone currently has 1xRTT coverage.

PhoneActiveCallCount Gets the number of active phone calls.

PhoneActiveDataCall Gets a value indicating whether the phone has an active cellular data connection.

PhoneBlockedSim Gets a value indicating whether the Subscriber Identity Module (SIM) is blocked.

PhoneCallBarring Gets a value indicating whether the call barring feature is enabled.

PhoneCallCalling Gets a value indicating whether the phone is currently attempting to connect an outgoing call.

PhoneCallForwardingOnLine1 Gets a value indicating whether call forwarding is enabled on line 1.

PhoneCallForwardingOnLine2 Gets a value indicating whether call forwarding is currently active on line 2.

PhoneCallOnHold Gets a value indicating whether a phone call is currently on hold.

PhoneCallTalking Gets a value indicating whether there is currently a phone call in the talking state.

PhoneCellBroadcast Gets the cell broadcast message

PhoneConferenceCall Gets a value indicating whether a conference call is currently in progress.

PhoneGprsCoverage Gets a value indicating whether the phone currently has GPRS coverage.

PhoneHomeService Gets a value indicating whether the phone is currently registered on its home network.

PhoneIncomingCall Gets a value indicating whether there is an incoming (ringing) call.

PhoneIncomingCallerContact Gets the Contact that matches the Caller ID.

PhoneIncomingCallerContactPropertyID Gets the CEPROPID of the property that matches the Caller ID, for example, PIMPR_HOME_TELEPHONE_NUMBER.

PhoneIncomingCallerContactPropertyName Gets the name of the property that matches the Caller ID, e.g. "h" for "Home Telephone".

PhoneIncomingCallerName Gets the name of the person who is currently placing the incoming call.

PhoneIncomingCallerNumber Gets the incoming call's phone number (Caller ID).

PhoneInvalidSim Gets a value indicating whether the Subscriber Identity Module (SIM) is invalid.

PhoneLastIncomingCallerContact Gets the Contact that matches the last Caller ID.

PhoneLastIncomingCallerContactPropertyID Gets the CEPROPID of the property that matches the last Caller ID, for example, PIMPR_HOME_TELEPHONE_NUMBER.

PhoneLastIncomingCallerContactPropertyName Gets the name of the property that matches the last Caller ID, e.g. "h" for "Home Telephone".

PhoneLastIncomingCallerName Gets the name of the last caller to place an incoming call.

PhoneLastIncomingCallerNumber Gets the last incoming call's phone number (Caller ID).

PhoneLine1Selected Gets a value indicating whether line 1 is selected.

PhoneLine2Selected Gets a value indicating whether line 2 is selected.

PhoneMissedCall Gets a value indicating whether there was a new missed call.

PhoneMissedCalls Gets the number of missed phone calls.

PhoneMultiLine Gets a value indicating whether the phone supports multiple lines.

PhoneNoService Gets a value indicating whether the phone is not currently connected to a network.

PhoneNoSim Gets a value indicating whether the Subscriber Identity Module (SIM) is installed in the mobile device.

PhoneOperatorName Gets the name of the mobile operator (i.e., the mobile phone company, or carrier).

PhoneProfile Gets the non-localized name of the current sound profile. For example, "Normal", "Silent", "Car", "Headset", "Loud", "Meeting", or "Speakerphone". (Smartphone only)

PhoneProfileName Gets the localized name of the current sound profile. (Smartphone only)

PhoneRadioOff Gets a value indicating whether the phone's radio is turned off.

PhoneRadioPresent Gets a value indicating whether the mobile device has a phone.

PhoneRingerOff Gets a value indicating whether the phone's ringer is off (i.e., if it rings and/or vibrates).

PhoneRoaming Gets a value indicating whether the phone is currently in roaming mode.

PhoneSearchingForService Gets a value indicating whether the phone is currently searching for service on a network.

PhoneSignalStrength Get the phone signal strength, expressed as a percentage of full strength.

PhoneSimFull Gets a value indicating whether the Subscriber Identity Module (SIM) memory is full.

PhoneTalkingCallerContact Gets the contact who is on the active phone call.

PhoneTalkingCallerContactPropertyID Gets the CEPROPID of the property of the contact who is on the active phone call, for example, PIMPR_HOME_TELEPHONE_NUMBER.

PhoneTalkingCallerContactPropertyName Gets the name of the property of the contact who is on the active phone call, e.g. "h" for "Home Telephone".

PhoneTalkingCallerName Gets the name of the person you are talking to on the phone. This value is not set when you are talking on a conference call.

PhoneTalkingCallerNumber Gets the currently connected caller's phone number.

PowerBatteryBackupState Gets the current backup battery state (for example, it is low, and charging). This enumeration allows a bitwise combination of its member values.

PowerBatteryBackupStrength Gets the remaining backup battery power level, expressed as a percentage of fully charged.

PowerBatteryState Gets the current battery state (for example, it is low, and charging). This enumeration allows a bitwise combination of its member values.

PowerBatteryStrength Gets the remaining battery power level, expressed as a percentage of fully charged.

SpeakerPhoneActive Gets a value indicating whether the speakerphone is active

TasksActive Gets the number of active tasks.

TasksDueToday Gets the number of active tasks that are due today.

TasksHighPriority Gets the number of high priority tasks that are currently active.

TasksOverdue Gets the number of overdue tasks.

Time Gets the current time. This Date/Time value updates once per minute.

p.s.: Add the Microsoft.WindowsMobile.Status reference.