Hacker puts a video cam on an RC truck and saves the lives of 6 soldiers
The funny thing is that if the DoD contracted out to build these, they would end up costing over $1 million each.  There are a lot of unique opportunities for startups that are willing to use off the shelf technology and package it in unique ways.  Provided, of course, you don't have any ethical qualms about selling technology that might be used for good or evil.