[XPERIA X10 Q&A, Help & Troubleshooting] DooMLoRD:
Optimizations / Tweaks

*** MOST OF THESE TWEAKS/OPTIMIZATIONS REQUIRE ROOT AND/OR XRECOVERY ***

System cleanup/unnecessary app removal/ROM specific optimisations:

[UPDATED Latest FW (2.1.A.0.435)!!]Junk Apps Clean up + Xrecovery + Jit V2 Optimized http://xdaforums.com/showthread.php?t=895351

X10 - [Tutorial] Remove Junk Apps + List of Junk Apps (2.1.A.0.435) http://xdaforums.com/showthread.php?t=947974

[Tutorial] My easy guide to SPEED-UP a lot X10 with STOCK SE 2.1 ROM http://xdaforums.com/showthread.php?t=934486

{android 1.6} [Tutorial] Rooting the X10 and removing apps http://xdaforums.com/showthread.php?t=714004

Getting some Cyanogen settings on Free X10 http://xdaforums.com/showthread.php?t=938464

Get the most out of TMR_CyanogenMod http://xdaforums.com/showthread.php?t=941470

Android 2.1 OPTIMISER V002 http://xdaforums.com/showthread.php?t=829660

2.1 Customizer v0.99.1 http://xdaforums.com/showthread.php?t=833324

{ONLY FOR 2.1} JIT Enabler v2 http://xdaforums.com/showthread.php?t=885977

{ONLY FOR 2.1} Boost your Xperia X10 performance – JIT installation guide @xperiax10.net http://www.xperiax10.net/2011/02/20/boost-your-xperia-x10-performance-–-jit-installation-guide/

Generic Tweaks:

[APP] Sysctl Config (Boost your X10 Performance) http://xdaforums.com/showthread.php?t=929448

How to to modify build.prop specificly http://xdaforums.com/showpost.php?p=11073006&postcount=4

[GUIDE] X10 Battery Calibration http://xdaforums.com/showthread.php?t=943626

[GUIDE] ServiceManager & APN Settings http://xdaforums.com/showthread.php?t=933558

[GUIDE] About Android and Optimizing Sony Xperia X10 http://xdaforums.com/showthread.php?t=844256

Xperia X10 3G+ enhancement http://xdaforums.com/showthread.php?t=951765

rendeiro2005 - tweaks http://xdaforums.com/showthread.php?t=1005027

Fugu Tweaks for the x10 http://xdaforums.com/showthread.php?t=1001552

SD-Card Speed Up! http://xdaforums.com/showthread.php?t=1028465

Increase SD card performance http://xdaforums.com/showthread.php?t=1047536

[BOOST] Give your X10 a REAL boost! http://xdaforums.com/showthread.php?t=1040497

Region changing to get latest updates:

Change Region, Debrand or Rebrand 1.6 and 2.1 via CDA http://xdaforums.com/showthread.php?t=824711

Camera related:

[APP] 2.1 Stock Rom - Camera Mod http://xdaforums.com/showthread.php?t=922657

[Guide] How to disable stock camera shutter sound on your X10! http://xdaforums.com/showthread.php?t=937759

[MOD]&[DEV] Camera for 2.2 standard/hd 720p versions http://xdaforums.com/showthread.php?t=994402

2.2 Camcorder Fix http://xdaforums.com/showthread.php?t=994336

Wifi tweaks/fixes:

Wifi fixer/blade wifi fixer http://xdaforums.com/showthread.php?t=927166

Benchmark related:

[GUIDE] How to get a HIGH QUADRANT SCORE http://xdaforums.com/showthread.php?t=935919

Customizations:

[MOD] Reboot Options in Power Menu http://xdaforums.com/showthread.php?t=836942

[MOD] Change your Battery Icon to show Percentage charge level http://xdaforums.com/showthread.php?t=826816

Using data card to boost performance:

[Howto] App2sd Step by step http://xdaforums.com/showthread.php?t=800555

[APP] Link2SD - *choose* which apps to move to SD on Eclair http://xdaforums.com/showthread.php?t=928622

TripNMiUI 0.2.4 APP2SD FIX http://xdaforums.com/showthread.php?t=960886

DATA2SD for FreeX10 (froyo) http://xdaforums.com/showpost.php?p=11047664&postcount=3667

How to for DATA2SD for FreeX10 (froyo) http://xdaforums.com/showpost.php?p=11217722&postcount=4672