e.g. the Samsung Tab: These tablets cannot access the Android Marketplace. Google did not plan the API to support larger screens and they are blocking anything which is not a small-screen phone. So, each vendor will set up their own rinky-dink store. Great, huh? Add that to the fact that very few Android devices are upgradable to a newer Android version, with new versions coming out very frequently (we're currently at 2.2, I think, with 3.0 and 3.5 expected real soon now?) and you have a real customer-hostile mess. One certainly worth avoiding, imo.