I tried the pre-alpha CM10 on my galaxy S II T989 phone and it loads, UI is buttery smooth as advertised but that is pretty much it. Everything else really did not work yet. Not that I am complaining... it took forever before they got CM9 for my phone and they started working on CM10 really really really fast. I love my CM9 rom and its my permanent rom right now. I think its still alpha but everything works.