beta 3 is out.
One thing I am liking about IE7 is that when you minimize it to the tray, it releases memory back into the wild. I have had 13 tabs open all day now and the memory was up to 173mb
I minimized it to the bottom and memory went down to 11mb
Right now memory is at 55mb after pulling it back up.
Firefox is using more than 66mb after being open less than 7 minutes.