Lots and lots of bugs! Here is one: I had some videos in a folder that played fine in 3.7. When I tried to play them with ICS, they played for a minute, then stopped. Now the phone will not even recognize that they are loaded. There is no way to select them to play with any player. The sample videos that came with ICS play fine. They are in a folder called \system\media\video, but I can't find that folder to drag and drop my videos. How do I load and play videos now with ICS? Also, every time the phone boots, I get two error messages: Search from camera authentication failed, and Permission request for account XXX.gmail.com. I also get these last two messages every time I take a picture.
Update: All of a sudden the videos appeared - go figure...