This may be a crazy idea, but I am thinking that it would be fun and convenient to play games on my regular TV instead of a cabinet where people would need to stand.  It would essentially make the cabinet into a console type setup (like the wii, xbox, playstation, etc).  People could sit on the sofa or chair in the family room and game.
So I have two questions regarding this:
1.  Would it be possible to make a CP that would sit over one's lap with a joystick and buttons?  Or would it be hard to stabilize the unit for the joystick?  If so, I am thinking that I'd have to go with just a handheld device with a thumbpad.
2.  If I do go with a handheld device, would something like a USB Microsoft Sidewinder be ok?  And would 4 of these all work at the same time for 4 player games?
Thanks.