If you were one of the unlucky ones who didn't get into the AT&T pre-ordering window, then hoping you could simply wait in line later this week to buy an iPhone 4 in person, you may have more waiting to do. AT&T has released an official announcement stating that in-store iPhone 4 purchases won't be happening until June 29th, a week from today.
It looks like those lines at Apple and Best Buy just got a little bit longer. Then again, if you're under a corporate account, the AT&T store is pretty much your only option, which means you'll have to wait a few days. Good luck with that.