Update.
I'm still liking it, but the wifey is having a problem. Since she installed it, she's had problems with some of her games she plays on Facebook. Problem being that when she goes to send items or give gifts to her game neighbors, the list of their names will not come up. Looks like the game designers/FB people are aware of the problem, but no solution is found yet since IE9 is so recent. Kinda surprises me that it didn't come up in beta testing.
DD
But, it does integrate with Win7 well. I'm liking the tab snapping.