AT&T clarified how it's going to roll out the iPhone 4, which is going to appear in its stores five days later than expected.

AT&T stores will have the phone starting on June 29, but it expects the supply to be limited. It's also fulfilling orders for customers who pre-ordered the phone on June 15.

Pre-orders were 10 times higher than they were for last year's iPhone "so we are working hard to get these devices into customers' hands as soon as possible," the company said in a release.

Even so it's a relatively jumbled launch, suggesting Apple pushed hard on the release schedule.

AT&T is starting to call customers this week who pre-ordered for store pick-up, to let them know when their phones are ready.

On June 29, AT&T will sell its inventory on a first-come, first-service basis and then take orders for delivery or store pick-up.

Meanwhile, some people are starting to receive pre-ordered phones shipped early.

Apple stores will have a "limited" quantity of the $200 to $300 phones available on Thursday, June 24. Its Web site says phones ordered online today will ship by July 14.

That's all despite news that users of the new iPhone won't be able to turn off Apple's location tracking capabilities.