Seattlepi.com recently interviewed Blake Ross, co-founder of Mozilla Firefox project while he was attending Gnomedex. Amazingly, he agrees that IE7 is a solid product.
Its an interesting article about how he perceives things. You can read his interview at http://blog.seattlepi.nwsource.com/microsoft/archives/104679.asp
By the way, Posting this link does not mean that I agree with him fully.