At the Windows Digital Lifestyle Conference in Tokyo, Bill Gates unveiled a few more details regarding the upcoming operating system. According to the transcript, the key aspects of Windows 7 will be "the ability to be lower power, take less memory, be more efficient, and have lots more connections up to the mobile phone."
In the meantime here are some interesting videos and links:
Eric Traut's presentation of virtual machine on windows 7 core.
Multi-touch demo - Surface -esque demo
Some other related links:
As stated prior, more at PDC. In fact it seems attendees with get a hard drive with the bits:
(Here's hoping its in better shape than Longhorn at PDC 2005 - Whatever did happen to the unified notification message box?)