This is something I try and do every few years (not just in VS) in case it works and I didn't notice it being added. Fantastic to see it implemented.
Tomorrow is VS2010 day for me. I wanted to install it today but had to finish off some work first (and now it's almost 3am so a bit late to mess around with my dev environment).
From the tips here, plus reports of improved intellisense and F1 help (in C++) and a bunch of other stuff, I'm glad I'm able to update sooner rather than later. Wishing for features is one thing but knowing they're out now in a new version while being stuck on the old one would be annoying. :) I used to work in huge teams on massive projects where it could take years to convince everyone it was time to update VS. Not so at the moment, which is great.
It's really all of these nice-to-have things, which might only shave off a few seconds here & there but add up to a much nicer environment, which are pushing me to switch to VS2010 now rather than wait.
I'm also looking forward to the C++ language additions but it'll be a while before I get a chance to really start using those. (Have some code in mind that will benefit from them for sure, but it's not yet a priority.)