We just received a tip from a Best Buy ninja of ours, and well, it seems that Radio Shack isn’t the only game in town in you’re looking for an Apple iPhone. Best Buy will be offering up Apple’s iPhone 3GS for free for one day only, this Friday the 10th. This offer is valid to both new lines, additional lines, and also qualified upgrades. We have been told that all stores have inventory levels to support the promotion, and it’s an instant rebate type deal. Who’s up for a free iPhone?