I've read some entertaining posts about IE 7 beta 2 comparing it to some other browsers. One in particular made me laugh though I can't post it as it included an expletive ;-( and I don't want to offend anyone. I've been surprised by the number of children that read my blog.
The post included the quote "The only reason I've been a fan of Firefox is for tabbed browsing and some illusion of security. IE is back, baby."
Browse here to download beta 2 for yourself. I love the tabbed groups, the Phishing filter and the facility to view a thumbnail of all open tabs. I know IE's been very slow to support tabs but the implementation is really nice now it's finally arrived.