I still like ASUS's vision of a tablet with a docking station keyboard. I think that is the best fit for the Tablet/Laptop market. The keyboard docking station should have the things such as ports, added battery, added HDD space, etc... while the tablet should house the OS.
I think saying this "converts" to a tablet is incorrect since a tablet is an AIO device, while this is just a flip screen. You cannot remove the screen and go mobile with it, just flip it backwards and use the keyboard as a stand.