[XPERIA X10 General] superleeds27:
Here we go!

Found these over in the Arc forum, Im guessing most will be the same.

List updated, now with complete descriptions for all APKs.

This is a handy reference guide I had posted on my local forum, the list of apps may not be identical to everyone else, but the core ones are there. Hope it's helpful here too! :)

Feel free to let me know if this is helpful or if there's any additions or corrections needed to be done. :)

WARNING: Rooting and removing System apps is at personal choice and risk of lost of warranty and damaging the phone.

WARNING: Always make a complete backup of ALL the system apps before removing any in case of accidental deletion.

DISCLAIMER: This is only a reference guide. I will bear no responsibilities if by referencing this guide through your own discretion damages your phone in any way.

Apps that are unsafe to remove or are linked to phone's capabilities:

(Keep them if you want access to all of your phone's features.)

Note: Many of these only run when needed while a few of them are persistent services that are about 1mb sizes. While removing them may give you a few mb more, keeping them is rather insignificant.

Note: Some of them can also be removed if you have replaced or removed the main app they are tied to, but read the descriptions carefully!

AccountAndSyncSettings.apk --- Account and Sync Settings

AdobeFlashPlayer.apk --- Adobe Flash Player

AntHalService.apk --- Hardware Abstraction Layer

ApplicationsProvider.apk --- Search Applications Provider (ASP service)

Bluetooth.apk --- Bluetooth Share

bootinfo.apk --- Download Agent

CalendarProvider.apk --- calendar storage

CertInstaller.apk --- Certificate Installer

CredentialManagerService.apk --- Credential Manager Service

CustomizationProvider.apk --- regionalization

CustomizationSimPayType.apk --- regionalization

CustomizedApplicationInstaller.apk --- regionalization

CustomizedSettings.apk --- regionalization

DefaultCapabilities.apk --- hardware capabilities

DefaultContainerService.apk --- Package Access Helper (web container service)

device-monitor.apk --- plug and play monitoring

DMClient.apk --- Software Updater

DownloadProvider.apk --- Market Download Manager

DrmDialogs.apk --- DRM sync service

DrmProvider.apk --- DRM Protected Content Storage

enhancedusbux.apk --- usb driver

FastDormancy.apk --- Network Fast Dormancy

FmRxService.apk --- FM receiver service

genericappinstaller.apk --- application installer service

GoogleBackupTransport.apk --- Android Backup Service for apps

GoogleCalendarSyncAdapter.apk --- calendars sync

GoogleContactsSyncAdapter.apk --- contacts sync

GoogleServicesFramework.apk --- google services framework

InfiniteView.apk --- phonebook info page

LiveWallpapersPicker.apk --- Change Live wallpapers

LocalContacts.apk --- phone contacts

Maps.apk --- google maps

MarketUpdater.apk --- android market updater

MediaProvider.apk --- Media Storage (Ringtones, Notifications)

MtpAppGB.apk --- Media Transfer Protocol (MTP)

NetworkLocation.apk --- Network Location Manager (Location Services, Check-in, Geo-tagging)

OMAClientProvisioning.apk --- OTA network settings download

OmaV1AgentDownloadServices.apk --- OTA services download and purchase/billing services

PackageInstaller.apk --- package installer

Phonebook.apk --- Phonebook

PicoTts.apk --- SVOX Text To Speech service (used by navigation/translators/dictionaries)

ReadyToRun.apk --- OMA Sync extension

SemcCameraApplication.apk --- Camera

SemcContactsProvider.apk --- Contacts Storage

SemcHdmiControlService.apk --- HDMI CEC

SemcHdmiEnabler.apk --- HDMI

SemcPhone.apk --- Keypad Dialer

SemcSettings.apk --- Sony Ericsson Settings Menu > Connectivity/Settings Download

SemcTelephonyProvider.apk --- Dialer Storage

ServiceMenu.apk --- Service Menu

Settings.apk --- System Settings

SettingsProvider.apk --- Settings Storage

ShutDownAnimation.apk --- Shutdown Animation

SoundPicker.apk --- Sound picker

Sync.apk --- OMA account services

SystemUI.apk --- Notification bar

Talk.apk --- Google Talk

TtsService.apk --- Android Text To Speech Service

usb-mtp-update-wrapper.apk --- MTP extension polling

usb-mtp-vendor-extension-service.apk --- Sony Ericsson MTP extension

UseragentProvider.apk --- User Agent Storage

UserDictionaryProvider.apk --- user dictionary storage

Vending.apk --- Android Market

VerifyCertificatesDummyAppApplication.apk --- Certificate identifier

VerifyCertificatesDummyAppMedia.apk --- Certificate identifier

VerifyCertificatesDummyAppPlatform.apk --- Certificate identifier

VerifyCertificatesDummyAppShared.apk --- Certificate identifier

VoiceDialer.apk --- Voice Dialer

VoiceSearch.apk --- Voice Search

VoipCallLogProvider.apk --- VOIP Call Log

VpnServices.apk --- VPN Services

WapiCustomization.apk --- WAP settings

WapPush.apk --- WAP push (for receiving MMS)

Safe to remove:](These apps can be removed without ill effects to the Arc's health.)

*Note: New APKs from the 2.3.3 update.

AccessoryKeyDispatcher.apk --- event listener (unsure of trigger, hardware and handsfree keys work without it.)

Calculator.apk --- default calculator

CdfInfoAccessor.apk --- Software Component Descriptions

chinesetextinput.apk --- chinese keyboard

com.sonyericsson.androidapp.foursquare_ext_ts3.apk --- Timescape Foursquare Extension

com.sonyericsson.androidapp.timescapefeedsplugin.a pk --- Timescape Feeds

com.whatsapp.apk --- Whatsapp

*CoreNotificationPublisher.apk --- Lock Screen Notifications

CrashSMS.apk --- Diagnostics Tool (debug helper)

datatrafficswitch.apk --- mobile data on/off widget

DigitalClockWidget.apk --- clock widget

DownloadProviderUi.apk --- default browser downloads folder

EventStream.apk --- Timescape

EventStreamPluginCallLog.apk --- Timescape Call Log Extension

EventStreamPluginFacebook.apk --- Timescape Facebook Extension

EventStreamPluginTelephony.apk --- Timescape Telephony extension

EventStreamPluginTwitter.apk --- Timescape Twitter extension

facebook.apk --- Facebook

*FBCalendarSync.apk --- Sony Ericsson Facebook Integration Calendar Sync

*FBMediaDiscovery.apk --- Sony Ericsson Facebook Integration Media Discovery

*FBMusicLike.apk --- Sony Ericsson Facebook Integration Music Like

*FBNotificationPublisher.apk --- Sony Ericsson Facebook Integration Facebook Notifications

*FBSetupwizard.apk --- Sony Ericsson Facebook Integration Setup Wizard (not needed to setup or for FB Integration to work)

GenieWidget.apk --- News and Weather

Gmail.apk --- Gmail app

GoogleFeedback.apk --- Market Feedback Agent (forceclose reporting for apps installed from Market)

GooglePartnerSetup.apk --- Google Partner Setup (no longer needed after setting up Gmail)

GoogleQuickSearchBox.apk --- google quick search box

HTMLViewer.apk --- HTML viewer (view HTML files directly from file manager)

IddAgent.apk --- Anonymous Usage Stats

JapaneseIME.apk --- japanese keyboard

LearningClient.apk --- learns user typed words for default keyboard

letsgolf_A_353.apk --- Let's Golf game

LiveWallpapers.apk --- Live wallpapers pack

LivewareManager.apk --- Liveware Manager

MagicSmokeWallpapers.apk --- Live wallpaper

MediaWidget.apk --- Media shortcuts widget

MediaUploader.apk --- My Uploads for Youtube uploading (not needed if just watch Youtube)

MusicWidget.apk --- default Music player widget

*NotificationProvider.apk --- Lock Screeen Notifications Storage

officesuite.apk --- Office Suite

OmaDatasyncService.apk --- Sony Ericsson Sync

PhotoWidget.apk --- Picture Frame widget

*playnowclientarvato.apk --- Playnow Store (replaces the 2 APKs in the list directly below)

playnowappinstaller.apk --- Playnow updater

playnowclient.apk --- Playnow

POBoxSknPink.apk --- japanese keyboard skin

POBoxSknWood.apk --- japanese keyboard skin

Protips.apk --- Pro Tips widget

qcsemcservice.apk --- RIL extension for default browser

Radio.apk --- FM radio

retaildemo.apk --- retail demo

SecureClockJava.apk --- web clock service (some DRM or Secure services may use this, restore if you need it.)

SemcCrashMonitor.apk --- debugger

SemcDlna.apk --- media server

*SEMCFacebookService.apk --- Sony Ericsson Facebook Integration Service

SEMCSetupWizard.apk --- setup wizard

SemcVideoEdit.apk --- video editor

SoundRecorder.apk --- sound recorder

StatusSwitch.apk --- Status switch widget

Stk.apk --- Sim Tool Kit

Street.apk --- Google Street view

SyncWizard.apk --- Sony Ericsson Sync Account

timescapelegacywrapper.apk --- Timescape plugin

TimescapeSpline.apk --- Timescape widget spline

TimescapeWidget.apk --- Timescape widget

touchnote.apk --- Touch notes postcard

trackid.apk --- TrackID

*UnsupportedHeadsetNotification.apk --- Possibly a notification when pairing with unsupported bluetooth headsets

usersupport.apk --- Support

VisualizationWallpapers.apk --- Live wallpaper

WallpaperPicker.apk --- Sony Ericsson Wallpapers

widgetdigitalclock.apk --- clock widget

widgetonoff.apk --- widget on/off toggles

YouTube.apk --- YouTube

Can be replaced:(These apps can be safely removed and be replaced by preferred third party apps of the same function.)

Warning: Sony Ericsson's home launcher should not be removed until after another third party home launcher has been installed and properly set up to take over it's function.

Note: Depending on the third party calendar app of choice, it may be advisable to setup your calendars using the default calendar app before removing it.

Note: Most third party messaging apps cannot send and receive MMS if the stock messaging app is removed.

Note: Removing the default clock widget will also remove the alarm feature. Ensure your clock of choice has alarms or have another alarm app installed.

Browser.apk --- default web browser

Calendar.apk --- default calendar

Conversations.apk --- default messaging

Home.apk --- default home launcher

SemcDeskClock.apk --- default clock and alarm

SemcEmail.apk --- default email app

SemcGallery3D.apk --- default gallery

SemcMusic.apk --- default music player

textinput-tng.apk --- default keyboard

How To: To remove the system apps, use Titnaium Backup from the market.