This depends on your product / idea. Both Android and iPhone have a substantial install base, why not pick one and test first? If you get traction, then expand

This depends on your product / idea. Both Android and iPhone have a substantial install base, why not pick one and test first? If you get traction, then expand etc. Choose the platform that makes more sense for your app (capabilities, payment options). As for outsourcing, depends on the complexity of the app. Basic apps you could use a consultant off CL for some quick prototyping. IMHO using consultants is OK, if (a) speed is essential, (b) you can build and test the code yourself, but just don't have the time (c)Make sure you have a rock-solid contract