All this morning i've been bugging apple online chat to see if i could get more information on the 3G release. After about 5 trys i got some good information.
She says regardless if you ordered today or the first day pre-orders were announced we'll all be geting it the same day.
EDIT: forgot the screen shot
can't figure out how to post the pic. heres the link :http://cl.ly/WTG