Scratch

hey, this is a very rhudimentary Idea I had, please give your thoughts and suggestions.

I have a Picoboard, which deals with inputs, and the LEGO WeDo motor deals with outputs. by connecting these two board to a wireless USB socket, could you put together a little differentially driven scooter robot connected wirelessly to the PC and then told to move by scratch? It's the only way I could think of controlling a robot via scratch without sed robot having a laptop strapped  to it. :-( I have some questions.

1) does anyone know where I could get a wireless USB socket (two needed)
2) can scratch control more that one WeDo motor at once?
3) any comments? I know this is a little farfetched but if it worked it would be a great hobby project :-)