All Things Digital posted a news story that the iPad shortages are continuing

Did Apple underestimate the iPads early popularity? It certainly seems that way. Amid reports that the device is now outselling the Mac, comes news that iPad supplies are increasingly constrained as Apple prepares for its international launch. A new survey of 50 Apple retail stores found the iPad to be sold out at 74 percent of them.

  iPad Sold Out at Many Apple Stores