Cualquiera, echale un vistazo a la pagina del la aplicación.
COMPLETELY INTEGRATED/INVISIBLE GOLD CARD PROCESS
Only ONE menu step - HACK ACE
No ROM downgrade required (only radio/kernel)
No wiping data
Rom is fully functional (yes, inc wifi)
Fully rooted with insecure boot image (supports adb remount for rw system)
Busybox manager app installed
S-Off, superCid & carrier sim unlock
Correct Radio is automagically restored for HSPA+ operation
Clockworkmod Recovery and Rom Manager included
Both stock Froyo and Gingerbread supported
Easy return to stock
Much smaller download
Much smaller firmware flash to obtain the exploit - comparatively very fast processing.
http://forum.xda-developers.com/showthread.php?t=952352