Alpha until Camcorder is fixed, HW Acceleration works, fingerprint scanner works, and battery life is better. Beta is a label typically used to say "It has bugs, but feature wise is complete" which, as amazingly solid as this alpha is, it doesn't really qualify as.
That said, great job with this so far. This rom just proves how awesome the Atrix was hardware wise even without HW Acceleration.
Current phone - Nexus 4 16GB (CM10.1 RC2)
Current Tablet - Nexus 10 32GB (CM10.1 Nightly)
Previous devices - Motofail Backflip (CM7.2 Stable), Motofail Atrix 4G (CM10), HP Touchpad (CM9), Asus Transformer TF700 + dock (rooted stock ICS), Nook Color (CM7.1), Samsung Blackjack II (WinMo 6.1)