From the perspective of "I want my device to continue to run programs at all" you're entirely wrong. Half the time on my n810 I'm running a regular x11 app over ssh forwarding, and I haven't got many problems.
I'd be perfectly happy running regular desktop applications on my tablet, if it came down to it. Mer was a great platform for that.
From the perspective of "I want my device to continue to run programs that are perfectly hildonized and integrated" then you're only slightly wrong ...and only because it's possible to fake it a la sugarization.