Best Buy has today announced that it will sell the iPhone 3G across the USA starting on September 7th.

The announcement means that the iPhone 3G will be available to buy from over 970 stores across the country.

“We had a lot of work to do, obviously, to get in a position where Apple and AT&T would feel good about Best Buy Mobile carrying it, and that’s what we’ve done in the last 18 months,” said Shawn Score, president of Best Buy Mobile.