Asus Taichi 21-DH51
The Asus Taichi 21 has a unique solution to the problem of how to handle the display on a convertible notebook. Instead of making you twist the lid around, the Taichi has two 11.6-in. or 13.3-in. full HD touch displays -- one on the inside for conventional notebook PC use, and one on the outside for tablet use.
The extra display comes at a premium price -- the Taichi starts at $1,299 for the Intel Core i5 model and goes up to $1,599 for the Core i7 -- but it might be worth it if you need two displays at once. (Asus also has single-display tablets that dock with keyboards, the Transfomer Book and Tablet 810.)