Citizens in Space wants to encourage space hacking by providing opportunities for students and others to do experiments on suborbital space flights: Hacking Space Exploration - citizensinspace.org We're offering experimenters the chance to fly 100 open-source payloads on XCOR’s Lynx. We hope to fly additional payloads on Lynx and other suborbital vehicles in the future. The reason why we want these payloads to be open source is so other people (both citizen scientists and professional researchers) can duplicate them in the future.
The program has been waiting for the Lynx users guide so prospective experimenters could begin designing their hardware, However, ITAR issues were holding up the guide's release. Fortunately it is now available (see earlier announcement): ITAR Hurdle Passed - citizensinspace.org.