Android MODS

http://samfirmware.com/
http://milleannifa.altervista.org/blog/?p=3416

http://forum.xda-developers.com/showthread.php?t=1700749
http://dl.xda-developers.com/attachdl/b850d25f01a6128dc6487782e0d4d0f0/5017e1be/1/1/1/7/5/6/9/Link2sd_ext4_Mount_Script_Tutorial.txt

http://milleannifa.altervista.org/blog/archives/3579
http://forum.xda-developers.com/showthread.php?t=1700749