whats wrong with the design? if your phone is in a case, then take it out and put it in the "laptop". its not going to be a full fledged tablet that you sync to, its going to be a screen and battery. you insert the phone, and the tablet just makes the screen bigger and the battery gives you days of life.
essentially, this is the ultimate "case" for your phone. and for a lot of people, it could replace their laptops. the convenience would be dramatic... no more syncing anything besides timely backups to another storage device somewhere (or internet).
your netbook and phone would be one in the same.. youre just transforming its form factor at will. i really like this, and cant wait until faster phones are out.