The concept is fine. I'd love one myself, but it doesn't necessarily give me anything that having one work and one home computer and a portable usb drive doesn't. Getting rid of the brick is a nice touch. But where's the handle?
Dell's XPS M2010 does kinda the same thing:
http://www.dell.com/content/products...=19&l=en&s=dhs
I've owned three Samsung products in my life and regretted every single one of them, so there's no way in heck I'd buy a computer with their name on it.
Of course, being laptop designs, these things tend to have ridiculous price tags attached.