On Win 7 x64 RTM:
Unfortunately I immediately ran into issues which I cannot get passed.
I installed the 3.3.0.00 64 bit driver.
The installer appeared to hang on "Scanning for Virus TI"
Cancelling the installation appears to replace the class complaint drivers with the proper ones.
However, In the Device manager, the TI Snow shows up as "Virus TI USB 2.8.32" with a Code 10 (Device cannot start)
Make sure you are using a free USB root hub. Usually the reason for this is that you exceeding the USB bandwidth .