IE7 Plans Emerge
Mostly security enhancements, according to Microsoft Watch.
"New" features include tabbed browsing and support for transparent PNGs. No comment yet on whether full support will be given for CSS2 - *sigh*.
Curiously, there's also talk that IE7 will feature an integrated news aggregator, which can only help to fuel the popularity of the RSS medium - there are very many PC users out there who use email and browse the web daily, but have never seen the need to install a separate news reader. Having such a tool pre-installed on their new PCs will put the technology in their face and make it easier to give RSS/Atom feeds a try.