This is probably more of a general Honeycomb 3.0 question, but since the XOOM will be the first 3.0 tablet, it makes sense to start the discussion here.
What tablet specific apps will be available for the XOOM? Obviously, the new Google apps demo'd in the video (gmail, browser, youtube, books, maps, etc) will be loaded up, but what about third party apps?
So far, I've read about the nVidia Tegra Zone, which highlights games optimized for the Tegra 2 and sounds really cool. I know that there are a limited number of Tablet apps for the Galaxy Tab, but those were built on 2.2.
How will existing Froyo 2.2 apps and below work? During my short experience with the Galaxy Tab, I found that some apps filled the 7 inch screen perfectly (Angry Birds Seasons was awesome), while some did not scale well or at all. Will Honeycomb blow old apps up to the full screen, or display them in multiple smartphone size "windows" (did Rubin call them fragments?) on your main screen? If this is the case, you could have some real desktop-like multi-tasking potential.
Early adopters may be faced not only with high prices but a limited stock of available and quality tablet apps. I think this is the biggest problem of the high price point; third party developers may not prioritize 3.0 app development if only ckeegan and a few other people are willing to pay the rumored price. Of course, the 3.0 experience and Chrome-like browser may be worth it by itself.