I have been using IE7 for a while and I really like it. It just seems simpler, safer and better than IE 6 - and it feels like a user-focused version of Firefox.
I mean the way it handles tabs are better and easier. The way it handles RSS feeds are better than any other browser. Sure Safari got some nice RSS features, but - I do not know - it seems time-consuming to have that many settings compared the IE7.

In terms of security, well it is more advanced than any other browser. Of course only time will tell if that also means that it is more secure.
What I do not like is the New IE7 website - to fancy, to noisy, to disturbing.
Ohh... Did you know that BrowserCam have added IE7 support? Nice!
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