|A number of retailers are running out of stock of the iPod nano, notes 9to5Mac. In the US these include major chains like Amazon, Target, Walmart and Best Buy. Amazon and Target are believed to be out of about half of their Nanos, while Walmart has just a few in stock. Outside of the US, Amazon UK is also seeing stock-outs; some retailers do have plenty of units though, including Apple itself and B&H Photo.
Apple is expected to refresh several products at a September 12th event. Like the iPod touch, the Nano is overdue for an update, since it was left essentially unchanged after an event last October. What Apple might have in mind hasn't emerged in many reports, but one rumor does have the player reverting to a rectangular design. In any case the Nano will probably switch to Apple's new, smaller dock connector, since space is a particular problem on the device. It measures just 1.61 inches long, 1.48 inches wide, and 0.35 inches thick, including a clip.