Whenever we want it or not we will use IE7 sooner or later (even when going to the ATM). I hope that IE7 copied enough features from Opera/Firefox so that I don't feel as restricted and unprotected as I feel with IE6.
I remember reading articles about microsoft excluding the possibility of adding popup blockers in IE (5.5 I believe) - they wanted to please the ad industry. I was very secure at that time when Firefox was still vaporware, by using Opera.
BTW, the thumbnails are cool. I tried them in Opera 9.0 Beta. However I still use Opera 8.5 as my main browser - Opera 9 was not stable enough the last time I tried it.