I think we're right on the edge of this. Unfortunately so far all the solutions (the Atrix, etc) ended up costing a lot of money just to have the ancillary dev

I think we're right on the edge of this. Unfortunately so far all the solutions (the Atrix, etc) ended up costing a lot of money just to have the ancillary devices (i.e. dock, etc). If the wireless displays are cheap, and the control interfaces work cheaply as well, it has a chance. Otherwise you are probably better served by having two devices with good syncing.