Don’t like Samsung bloatware that come along with stock Samsung Galaxy S II firmware? Cognition S2 ROM is the one that you should try. Cognition S2 v1.31 is a custom ROM based on Android 2.3.4 Gingerbread (XXKG3). It is rooted, deodexed and zipaligned. And added lot of goodies like SIP over Wi-Fi and 3G, accurate battery mod, extended power options, disable battery full notification & vibration, specify default install location…
Cognition S2 v1.31 is using Ninphetamine 2.0.2 Kernel. Looking forward for next release which will be based on Android 2.3.5 Gingerbread (GRJ90).
Installation guide ~ How to install firmware on Samsung Galaxy S2 with ClockworkMod Recovery?
Download Cognition S2 v1.31 CWM ROM here.