If you’re wondering whether it might be a good time to head to the nearest Apple Store to join the queue for a new iPhone, the folks at Top Muffin offer a comprehensive iPhone Availability Tracker.
The page is powered by data from Apple’s own availability widget and is updated every 15 minutes. The accuracy of Apple’s availability information has been questioned by some in the chaotic first two weeks since the 3G model launch, prompting Top Muffin to recommend calling stores first to confirm stock on-hand.