With this python standalone you can easily delete:
Application install log
Realplayer last played log
Firmware-Over-The-Air reserved file (about 4,5MB)
Gallery image thumbnails (PAlbTN)
Bluetooth devices (needs killing btmanserver.exe and phone restart)

You can use luomao's killme to kill btmanserver.exe service (megadeth doesn't work with new hacks).

v1.0.3
-removed megadeth
-restart script included

v1.0.1
-fixed a bug in fota reserved
-new icon and background
-new uid (please uninstall previous version first)

v1.0.0 -first release