iPad still sold out three months post-launch

With the recent iPhone 4 launch the media spotlight has faded on the iPad.  However, the iPad is still missing in action at many (most? all?) Apple stores.  I called four stores in the Boston area and they are only available by reservation.  The waiting time varies but I've been told to expect one week wait at one store and an indeterminate wait at the others.

The online store shows 7 to 10 business days waiting time for all models.