The goal of this project is to build and test an IDE where undergraduates can generate ideas for mobile applications, build prototypes, and refine these to the point where they could be the basis for launching new ventures. Initial design work will use App Inventor for Android, which enables rapid investigation of working prototype apps. One challenge is to create mechanisms to bridge initial prototyping work to use of the Android SDK. Another challenge is to create curriculum units that help learners launch new ventures. This work could allow for extended on-line educational offerings to a global community of learners.