I just tried IE7 Beta 2 and all I can say is: eeeks!
I don't know if it was my machine or what but when I installed it, desktop froze for about 10 minutes after rebooting. While using it, the UI was rather awkward and links that opened new windows just refused to work, forcing me to open them in tabs. When I tried to close it. The damn thing froze again for another 5 minutes. Needless to say, it was uninstalled right after that.
Where the hell did they get the nerve to release this crap as beta 2?
On the other hand, this gang of open source thugs just makes me shake my head. How ironic that they are leveraging Google, another monopoly-in-the-making, to spit on Microsoft. To me, it's just naked hate and nothing more.