Well...I guess I'm just the weird one then because no, this idea does not appeal to me at all. I've never sat at a desktop machine and thought "Oh, how I wish I had the mobile app Foo here". Maybe I haven't invested enough time into the Android library, but still - My experience is that most mobile stuff is cut-down, dumbed-down versions of stuff that exists in better versions for the desktop. Will this change in the future? Well, that is anybodys guess, but I'd not expect it to.
Likewise, whenever I've stumbled across a desktop-centered app whenever I've been using a mobile device, it has been a huge pain in the posterior. "you can use a mouse or whatever to make it easier" - Well, we're supposed to be mobile, remember? If my tablet isn't really a tablet but a tablet+keyboard+mouse+usb reader, then why am I not using a netbook or something with the proper hardware all in one box?
What about netflix? Or Spotify? Well, that goes to the other part of it: This seems like a huge, huge waste of resources. On what machine would this be desirable? A full-power laptop? Nope. It is supposed to be mobile. So, something like the pandora is supposed to simultaneously run double versions of major libraries, extra java machines and so on in order to seamlessly run google play? Even with more modern hardware by several generations, this seems like a huge waste. So there might be a few apps that really have no counterpart in the desktop environment. I'd expect the "proper" solution to this to be something like apkenv, not "Lets bolt two OSes on there and keep them together with some duct tape".
Which, of course, goes to the third part of it: The modern obsession of cramming every usecase possible into one single device. I don't understand it, and I've never seen it work out well. This case above mirrors so many one-device-for-life-ad spiels that I've seen, and the reality has always, always been disappointing. Crappy on-screen keyboards with no feedback, or attempts to do touch gestures with the mouse, or whatever. My local huddle of iDevice fanatics who proclaims that their iPads really is the best thing since sliced bread, yet still is flooding their FB accounts with misspelled/autocorrected status updates and pocket-taken photos because the hardware which is good for some things is not good for all things. Good at swiping is not good for typing. No hardware controls means crappy onscreen controls. No depth means bad optics (which you can hide by running you photos through an artifical look-like-crappy-camera-filter so that it looks ironically bad). And so on, and so forth.
Which probably, as I said, makes me odd. But no, that does not sound appealing at all.