Just a suggestion to the developers. Yesterday, I updated Mint 6 to Mint 7 on my home desktop that's used by family members. I've noticed on Mint 7 that the screen seems to be blank for awhile after logging in. I've had Mint 7 on my laptop for a week or two, and can't remember if this is different than Mint 6. But, yesterday my wife logged into Mint 7 when I was there and asked "did I do something wrong?" as she was waiting for her desktop to load. So, I think there may be a difference between Mint 6 and Mint 7, since she noticed it immediately. This is a pretty new machine with pretty good hardware. It does have an ATI card and uses the ATI drivers. Perhaps, that has something to do with it.
The extended blank time doesn't leave a good first impression to a new user. Overall, everyone seems to like Mint 7! Congrats on the work you have done.