>>iBelie+(OP)
My primary concern with this is that different applications are inherently optimized for the platform on which they were originally designed. There are some applications that have a very
dense UI because there's simply alot of functionality that the program handles (think of a video editor, an IDE, etc). Trying to slim down those applications to make them reactive so that they will scale onto a phone or tablet just seems silly, and I fear that in the name of making "everything work everywhere", we're going to compromise a bunch of apps that worked beautifully on one platform in favor of making them work adequately on several platforms.
I mean, if someone said, "I've successfully ported Vim to Android!", my first thought would be, "Why in god's name would I want to run vim on my phone?"*
* Ruling out, of course, someone plugging their phone into external KVM.