If it doesn't come out in Q1 (not just announced, but released), isn't under $750, doesn't allow non-iTunes based application installation (ie. the customer decides what is acceptable, not Apple), doesn't have a 9" or 10" screen, doesn't allow some form of user expandable storage (SDHC cards, for example), and doesn't have an option for being directly attached to a KVM switch (or at least an external keyboard and mouse) ... then I'm definitely buying an Entourage eDGe instead.
E-reader and tablet-computer all in one. Market based app installation AND non-Market based app installation. Under $500. Should be available in Q1. Keyboard via USB or Bluetooth. MicroSDHC cards via in-plug-USB adapters (and other USB storage as well).
Right now, for me, the Entourage eDGe is the device that Apple has to beat. The hardware must be better, the OS must be better, the software availability must be better (not just the number of titles, but also the diversity of mechanisms for getting that software), the e-reader capability and diversity of titles must be better, and the price has to be at least in the same ball park (if not also better). And, last, it has to stop being vaporware. Otherwise, why bother with Apple's tablet?