Ok, here is mine: Prototyper. - Create a webapp that allows the users to choose their phone model. - Based on that, generate and allow downloading of a custom a

Ok, here is mine: Prototyper. - Create a webapp that allows the users to choose their phone model. - Based on that, generate and allow downloading of a custom app (Android, iOS) for that model. - The user should be able to customize the software modules for that app and interconnect them, IFTTT-like. HTH ;-)