That's a damn shame. There are so many good apps available in the Store that many developers have put a lot of time and effort into.
Not a shame at all from my perspective. I do not want a full-screen app on my 30" desktop monitor. Ever. (except remote desktop, which for obvious reasons makes sense)
I'm not knocking the apps themselves or the skill of the dev's that made 'em... i just hate the whole idea of forcing an app to be full screen only. Why would I want a full screen, 30" calculator or stopwatch or instant messenger?