I expected it to be a broad showing of their new system rather than wholly gaming focused. Especially since they stated that kind of press conference is saved for E3. Which is why people complaining at the lack of games is annoying at best.
I actually find this reveal pretty compelling, the design looks really sharp, and the magnetic cover with that keyboard is pretty clever. And since it's Windows 8 you can just reat the OS like any windows install with the Metro app thing I believe. So long as you get the Pro tho I think. Either way, makes usage of say Photoshop a lot more easier.
Adding new classes as cheap DLC would actually be compelling given how you can always have more and more vault hunters. That and having a large character customisation system in place, huge choice of looks and powers.