The Idea
Do you have one? Great. If not, there are plenty of ideas out there you just need to ignite the spark. What better way to ignite it with some starter kits. The Technical Evangelist team at Microsoft has created a bunch of “starter kits” that consume public API’s.
More Help
Once you are up and running with your idea, you might need more help on location services or media access. There is a plethra of examples and kits over at the Windows Dev Center that can point you in the right directon or answer that question.