My computer has enough power so I’m not really interested for myself… but a 5th row of dynamic keys on the keyboard?!? I would LOVE that. Looks beautiful (the dynamic keyboard that is). Jump to 46 seconds if you can’t make it.
Note: From my favourite computer shop Ncix.com the Lenovo X1 Carbon in Core-I5 mode starts at $1200 and the Core-I7 around $1550 (November 2014).