In its current beta form the functions are obviously limited, and some of the design needs tweaking (for example the username for plugins ought to be entered in the plugin itself, not on the settings page).
However, the UI design is so good and intuitive, this shows a very plausible way forward for the tablets to become mainstream devices that even non-techie people buy.
In short, excellent stuff, it would be VERY interesting to see it integrate more functions beyond just multimedia, for example web browsing and e-mail.

First impressions were excellent. Perhaps a bit fiddly to get set up but great functionality and looks. BUT... My poor battery! I walk to the pub listening to Canola, pause it while I'm drinking with my friends and it's still draining power while it's paused. So it has to be back to the standard Media Player for me :-(