One of the designers at a firm I've been doing some freelance work for insists on having his layouts fully tested in IE7, more so than in Firefox. From what I understand, the CSS support hasn't been finalized yet, so I've been ignoring it. Should I be testing sites in IE7 yet?
The latest beta version of IE7 is "layout complete" according to the MS team. That means, the way the browser is rendering the page now is how it's going to render the pages when the browser is officially released.
If you're working on a website that will launch and exist beyond the end of this year, IE7 compliance is crucial; ignoring it is unwise. Fortunately, if your coding for FF, it should look decent in IE7 too.
adjustafresh is right on the IE7 recommendation, especially since Microsoft plans to push IE7 out to all Windows users as an automatic update by the end of the year
for some sites I work on, I'm already noticing more IE7 beta users than Safari and Opera users combined
I would say that it's a time point. Definitely by the end of the year, start testing and making sure it's compliant. The company I'm with now is okay with me testing against it in the next few months rather than sweating it for launch.
That said, it works similiar to firefox. They've fixed their box model, which was the root of most of the problems I ever had with cross-browser checking.
Although, check the acid 2 test and IE still isn't even close. Neither is firefox.