I have tested Viper4Android on many ROMS , over the last few months.. Funny how I can get it to work flawlessly on only one rom, and not others.. Currently I'm running UN7 rom for Sprint.. It is butter smooth, but Viper always show Processing No. But if I install Detux Corp v9.0 based off of MM, it works with no issues at all. Weird how on one rom, based off the same frame work it runs, but no on the other.