Was pretty excited at the pi-top on first glance, but, $319 for what's basically a screen and a clamshell enclosure to the Pi? Yikes. Surely we can do better. The Superbook is a clamshell laptop powered by your smartphone and costs half that.[0]

[0]http://www.sentio.com/

Thanks, that seems pretty much what I'm looking for. Any experience with the device? I would like to run it with another board to support a more free approach (at least whatever is possible in the sorry state of SBC)