Was pretty surprised when the Revue was updated to 3.2 not sure if it was still Logitech that did it or Google. And OnLive did put up a blog post that the Co-Star is getting OnLive support first but the rest of the GoogleTV boxes will be supported afterwards.
Got the Sony box setup yesterday, there are a couple differences between it and the Revue that I've noticed.
There's an Eco menu and lets you decide between a long or short startup. Short doesn't shut down the box completely and resumes in a few seconds (7-10 sec) while long means you have to wait 30-45 seconds before starting. In the same menu, you can tell the box to shut down when the TV is turned off also.
There is an Audio Pass-though menu option I'm guessing to allow Dolby 5.1 though to your AV box.
It is running version 3.2 in case you were wondering. I've heard from people who have had review units already that there have been at least two updates pushed to it in the last couple weeks. I think the software I flashed yesterday was dated the end of June and all the notes said about it was that it was for stability fixes.
I noticed that some apps were missing that were there for the Revue. Probably because apps need to be updated for the new processor architecture. Oddly, there are also some Google apps that are missing like the Music app. Integration with VIP receivers is still there, but since I've got a Hopper you can only do the basic integration.
The box does seem snappier than the Revue and I specially like that quick startup option. Though I think there are still some bugs that need to be worked out. The session after flashing the update, my remote lost it's connection to the GoogleTV. I could only control it with my phone remote until the next time I restarted.