Short bio: Computer Scientist, FOSS supporter (read more)
Tux Machines (TM)-specific
Smartphones are computers, they have the same processing power as devices from a few years back, decent battery lives, complete Operating systems which will sit happily on desktop PC's if you let them. However when we get into the office or home, we put them down and head for the keyboard..
Ubuntu/Linux has a potentially big role to play in this arena if it does it right on Mobiles. A few standards are needed for Dock connectors so 3rd parties can join in and very soon true mobile computing could pave the way..