[HTC Tornado] DSF:
Let's post interesting tweaks .

Registry Tweaks

You need a registry editor for this. You can use PHM Registry Editor, Resco Registry,Total Commander, etc (I personaly like Resco Registry)

Change IE temporary folder

HKCU > Software > Microsoft > Windows > CurrentVersion > Explorer > Shell Folders

Modify "Cache", "Cookies" and "History"

Change mail storing folder

HKCU > Software > Microsoft > MAPI

Modify "AttachPath" and "PropertyPath"

eg:

"PropertyPath"="Storage Card\Mail"

"AttachPath"="Storage Card\Mail\Attachments"

WM 2003 default StartMenu list style

HKCU > software > microsoft > shell > start menu

"Grid view"= 0

If you want to revert to grid mode, put value 1

Save camera photos in folders that have the date&time in their name

HKLM > software > HTC > camera > captparam

EnableDateFolder = 1

Loop ringtons

By default there is a 3sec pause between the end & restart of media

HKCU > ControlPanel > Sounds > Ringtone0

Script = apr

If you need vibration too, set av0pr

However, after changing the profile this will revert to default value. This can be fixed by editing the profile xml file.

Looping alarm

HKCU > ControlPanel > Sounds > Clock Script = apr

If you need also vibration, set av0pr

FIX (WM5): menu letters -> numbers

When pairing with a Sony Ericsson device via BT (using Serial port service) the menu numbers are changed to letters. WM6 is not affected as far as I know

HKCU > software > microsoft > shell

haskeyboard = 0

Disable red key for disconecting GPRS

HKLM > ControlPanel > Phone

Delete Flags2

(default: dword "Flags2" with value 9)

thx 7floor

GPRS AlwaysOn

HKLM > Comm > ConnMgr > Providers > {7C4B7A38-5FF7-4bc1-80F6-5DA7870BB1AA} > Connections > [GPRS connection name]

AlwaysOn = 1

Animate Windows

HKLM > System > GWE

Animate = 1

Require reboot

Animate menus

HKLM > SYSTEM > GWE > Menu

AniType = 1

Require reboot

Change scroll borders

HKLM > System > GWE

"cxVScr"=3

"cyHScr"=3

The values represents pixels. V = vertical, H = horizontal

Keep .cabs

I personally, mark the "permanent" cabs as read-only. But you can alter the registry so the cab will be keeped every time.

Method 1:

HKLM > Software > apps > Microsoft Application Installer

nDynamicDelete = 0 (default: 2)

Method 2:

HKCR > cabfile > Shell > open

command = wceload.exe "%1" /nodelete (this is STRING)

Disable/enable USB charging

HKLM > Drivers > BuiltIn > usbfndrv

EnableUsbCharging = 1 (uncharge = 0)

Change Operator name

HKLM > SOFTWARE > Microsoft > RIL > OperatorNames

Here you add a string value with the network number, the value will contain the operator name. (here is a list with network numbers)

eg:

22610 =Fake Network"

Change the maximum call history entries

HKCU > ControlPanel > Phone

Modify "CallHistoryMax"

I've set it to 1000 :P

Download any file, with any extension, with IE

Say I want to be able to download .rar files.

Edit the registry as follow

[HKEY_CLASSES_ROOT\.rar]

@="RAR Archive"

[HKEY_CLASSES_ROOT\RAR Archive]

"EditFlags"=dword:00010000

@="RAR Archive"

If you want to download .exe files, change this:

[HKEY_CLASSES_ROOT\exefile]

"EditFlags"=dword:00010000

Aditionally you can edit/add file types via Smart Explorer (menu> file>edit file types)

Change backlight & display timeout

HKCU > ControlPanel > Backlight

HKCU > ControlPanel > Power > Display

WM5: Show EDGE icon when EDGE is avaible

HKLM > Drivers > BuiltIn > RIL

EnableDifferGprsEdgeIcon = 1

FIX MP3: If you cannot use/select MP3 ringtones

This happens if MP3s are asociated with other application, or not associated correctly with WMP. See the quotes from "%1". If you don't have such problems, you can skip this tweak

[HKEY_CLASSES_ROOT\MP3File]

"EditFlags"=dword:00010000

@="MP3 Format Sound"

[HKEY_CLASSES_ROOT\.mp3]

@="MP3File"

[HKEY_CLASSES_ROOT\MP3File\Shell\Open\Command]

@="wmplayer.exe \"%1\""

[HKEY_CLASSES_ROOT\MP3File\DefaultIcon]

@="wmplayer.exe,-2002"

HKCR = HKEY_CLASSES_ROOT

HKCU = HKEY_CURRENT_USER

HKLM = HKEY_LOCAL_MACHINE

Thx to xda-developers, modaco, me :D, etc.

Maybe later I will post other tricks & tweaks to improve the smartphone usage