The ability to install modified versions of stock Android (read: custom ROMs) is one of the biggest reasons why enthusiasts opt for Android today. These custom ROMs can be slight variations of an original ROM, for example DarkyROM, or be heavily modded like CyanogenMod and MIUI. It can actually be quite addictive, this habit of trying out new ROMs and flashaholics - people who flash new ROMs very regularly - especially those of you who have the Samsung Galaxy S II will undoubtedly love this new dual-ROM-booting app we came across. Check out the details after the jump!