Like most, I find IE7 amusing because it copied so many features from Firefox. True, many of Firefox's features were copied from other web browsers like Netscape and Opera; but it is safe to say it was Firefox that popularized those features.
I did eventually get to playing around with IE7, and to my surprise I discovered something I would like to see in Firefox. Multiple home pages. At first I was like, "Why do I need many home pages?" I was under the impression it was like another favorites. Like my favorite favorites, and that would be lame. Then it dawned on me, all those home pages open in tabs when you open IE7. That could be convent in Firefox. It even sounds like something Firefox could do, so I looked through all it's options and came up short. Perhaps there is a plug in. I'll probably just wait to see if it comes with Firefox 3.