I'm a "die hard" FireFox user. I "stepped up" from Opera to Firefox well over a year ago, and is where I stand.
HOWEVER, I've been following the IE7 activity. I've downloaded the betas and now this Release Candidate... I will say, Microsoft as well as, IE has come a long way in providing a great browsing experience.
I'm not here to start a "browser war".. So I won't say what IE is missing, even though it's obvious...
But, I will say that IE7 will be a damn good "free browser" to have bundled in with Windows Vista. And for the regular user (which I'm not).. Will be more than sufficient for their internet browsing needs.
Hats off to Microsoft on this one. "Ya done good."