It really is looking like we'll see an update in November some time. No one knows when it will show up, so we should all just continue waiting for it. Just remember guys, if it doesnt show up this Tuesday, theres always next Tuesday, and then next Tuesday after that etc.
If you NEED a computer, buy it. There wont be much of a difference between the CD and the C2D. BUT, if you don't need one right now, just wait.
The only differences I can see if ANY would be the C2D obviously, an 80gig HD, and possibly 1gig of ram. We will not see anything else changed until next year.