We are currently locking down IE7 for shipping - IEBlog : Details on our CSS changes for IE7

Internet Explorer 7 (IE7) is coming and I'm not really looking forward to it. I have it loaded on a machine for testing my current sites, and that process is going to start soon. I've done a few spot checks and it doesn't look too bad. I don't use hacks to get my CSS to work, but I do see a couple of problems I've going to have to fix.

In all, we made over 200 behavior changes (bug fixes or new features) under strict mode to improve CSS2.1 compliance.

What I'm concerned about is that IE7 is still going to be non-compliant, but in a different way than IE6. It's hard to tell how bad it's going to be since IE7 is still evolving at this point. For now, I'm keeping everything as up to date as I can, and leaving some space on my calendar.