Create a central source code repository for ALL government software development projects to be hosted and collaborated on. Agencies could collaborate on the development of software systems. Developers from outside of the government and contractor circles that simply want to "help their country" could also get in on the action. This could potentially facilitate an "IT-AmeriCorp" of sorts. There are plenty of automated tools and techniques to help in the process, such as continuous integration, static source code analysis, peer reviews, etc.
Idea No. 613