Actually, a tablet that's really just a laptop could really interest me.
I've not seen anything with real depth or artistic interest on a tablet yet - it's all little mini games, stripped back software with no real relevance to the world I live in... it's all entertainment. I don't want entertainment. I actually want tools that I can work with on the fly. I want Cubase style functionality to recording software... on a tablet. I want Pro Tools, I want Steam, I want utilities for writing novels, music, emails... I don't want a platform for disposable entertainment.
I don't want an app store, where someone else veto's my choices, and decides what I am allowed to access. I want a free market as far as applications go.
Oh, and the one that runs Windows 8 can run all the regular Windows programs, allegedly. If that works well, there are already tons of apps out there for it.
If I could run Reason, or Studio One, on a tablet, and sit in a tree and come up with some hip-hop beats and lyrics.... that'd be dope. If I could sit in a coffee shop just with my tablet, and work on my novel, with access to all the research I need, with access to the novel writing software I use.... that'd be dope. I've not seen serious solutions to any of these "creativity on the move" on the iPad, or even the Android store.
Anyway... just my 2p. Not saying Surface is the solution to any of this. But it could be closer than what we've got so far.