One unverified source provided some interesting information prior to today's Airport Express release.
This source predicted "new airport base stations" with Audio/Video outputs. The new base station was said to be about the size of an iPod and cost around $99.
Except for video out, the description accurately describes Apple's new Airport Express. Of more interest is another prediction for new Apple "Interactive" displays from the same source. These new displays are compared to Wacom's Cintiq tablet which is described as follows:
Wacom's Cintiq 18SX and 15X interactive pen displays combine the advantages of an LCD monitor with the control, comfort, and productivity of Wacom's patented cordless, battery-free tablet technology. By working directly on the screen, you navigate much more quickly and naturally
Apple tablet rumors infiltrated the Mac Rumor scene in early 2003 but has since led to no actual product releases.
It's unclear if the recent whispers of hangable displays is related rumor or not.