That didn't take long. The boys behind CyanogenMod promised a quick turnaround for its upcoming JellyBean-based update and are already teasing workable CM10 ROMs. CyanogenMod's Ricardo Cercuiera tossed a video of an early CM10 build on his YouTube page, declaring "it lives!" The early build is running on an LG Optimus 4X HD, and runs through unlocking the screen and recording and playing back a video. The build is still having some trouble with Google's