yes, picked one up
It's ridiculously small. First impressions good, connected very easily. Am streaming with no problems, tried a 1920 x 1080 clip and it played fine.
Only problem I'm having is it's giving me a HDCP error, saying my HDMI doesn't support it. Will try and fix that today, hoping it doesn't mean my TV is incompatible. Remote app for ipad and iphone work very well.
Also one thing is was concerned about, has been proved false. You can simultaneously watch movies on appleTV, and listen to music through iTunes through separate airport express speakers. I had worried it was one or the other.