The CM7 nightly released 4-21 (20120420) is more stable than the RC1 so far.
the RC1 fingerlock would stop working if you unselected usb debugging and you would be totally locked out unless you rewiped. It also would constantly random reboot as well as reboot on incoming calls.
The latest nightly so far fixed all that. Yeah I wish there was a newer official release but i guess they are going to CM9 now. But like the e07015 said, moto has not released the drivers and kernels for ics so there wont be any official CM9 release anytime soon. :/
I'm fine with cm7 if it stays stable, crossing my finger. Its WAYYYYY faster and better than motoblurSUCK!