[fjtorres]

Cellphone peripherals/second screens has been tried before.
So far it has always ended up poorly whether we talk of the Plam Foleo or the Motorola Lapdock.

The whole selling point of smartphones is that you already carry a cellphone so piling on features is *reducing* the number of devices you have to deal with. Spinning off features that the cellphone can do onto a separate accessory rather runs counter to that trend/philosophy so the odds of large amounts of phone buyers suddenly changing their mind strikes me as vey unlikely.