Getting my reserved Iphone 4 tomorrow so I will update the group on my findings.
Also picked up a 64GB Ipad 3G and this thing is pretty damn cool.
Check your iPhone 4 for yellow discoloration on the screen in the form of a band or spot. It seems to be an issue that some new owners are experiencing.
I assume you heard that AT&T is doing away with the unlimited data plan but you can be grandfathered in to keep it if you currently have it. If you want to keep it I would suggest you drive that point home with whomever you may speak with concerning your contract when you pick up for phone.
Just some FYI.