Sounds interesting! The projects can’t be very complicated for 25-50$, right!? 

Its interesting you should say that, quite a lot of the projects seem to start off simple and get more complicated, but all can be easily completed in under an hour. We are pricing ourselves very low at the moment to help us get into the market, and are exploring more avenues of work such as biding on higher value projects ($100 - $500)

I would like to participate!

I checked out your website (cool about the Pi), and I might be interested, depending on terms and degree of Aduino experience required.

I haven't jumped onto Arduino yet, but something like this might be a good prompt for me to stop stalling. I do have some questions:

1) How quickly do you need the turnaround once a project has been allocated to a programmer?
2) Do the contributing programmers own their own code (right to reuse at will)? Are these projects all open-source?
3) To what extent, if any, is the contributing coder responsible for testing and maintenance?

There may be other considerations, but this is what comes up off the top of my head. Could be a fun entry point on a number of vectors, so let me know if you think you'd like to include my name on your roster.

Ok, the coder is responsible for making a final, fully working program, but test code can be sent to the buyer multiple times and feedback can be received. 

Its possible to reject any job you don't want to take on