Just because you have a prototype, you don't have a product. Trust Ayah Bdeir, founder and CEO of littleBits, who knows the challenges that it takes to to go from idea to mass market product.
LittleBits is a circuitry set that has been stripped of the scary wires and traditional yellow colors and turned into a simple set of modules that anyone from kids to entrepreneurs can use. Some people using littleBits have made everything from a marble sorter to a voice box that plays back a father's recordings.
Image: Wikipedia - Ayah Bderir of LittleBits