Toolin' through the videos, there's a couple that stand out to me that I'm really excited about:

1. Multiple check-in/check-out: this is a really key feature, now if they'd only release some info on this when uploading to a library w/multiple content types...
2. Visio Services: slowly they're moving more of their services like these to the SharePoint platform to assist with collaboration around them (no more printing to *cough* PDF *cough* and then emailing, eh?)
   
3. Web 2.0 Nature of screens: you see dialogs appearing/disappearing that allow you to enter information, rather than posting to different pages and such.  Great step forward.  How does this affect branding a site now?  Only time will tell...mebbe once a CTP comes out we'll get a better idea...

What's got you stoked for the next rev?

- M