I believe 2.3.3 is the gingerbread version.
I believe you will have to wait for a custom ROM to be cooked up for it. I am waiting on the same thing...but I still need to SBF to the newest kernel version as well.
I'm running the miui ics rom. It has the framework from ics, its really cool!
Sent from my Transformer TF101 using Tapatalk