Let me start by stating that a) I'm a complete newby at robotics (hello everyone!) so if my question is in the wrong place... sorry
and b) this is such an awesome hobby I cannot wait to build my first robot.
So to the question...; I have a number of old cellphones lying about. Could they not be used in place of the microprocessor thingy? It just seems to me that they have all the necessary bits and pieces including a screen. And since they've been programmed once already to a cellphone, could they not be re-programmed?