Any reason not to upgrade on day 1?
http://www.apple.com/macosx/
I've owned more Macs than I can remember and never had a problem upgrading on day 1.
Generally speaking, unless apps are old, they work, at least in my experience. I am sure to be shot down with some terrible anecdotes of doom :rolleyes:
Using the developer seeds, all of our applications work, but we are retesting using the new seed that came out Monday. There is a minor UI glitch in BaseCamp that will be fixed in the release that should be out by Day 1.That's for the update, I was sure that you had looked into this as soon as the seeds became available.:)