Reminded by Christopher Blizzard's blog entry on a video that takes a look behind the scenes and, to me most interestingly, introduces some of the people behind OLPC I somehow found myself reading up on Bitfrost.
Bitfrost is OLPC's security platform that is going to protect some several million machines all over the world once deployments start, and that is not a small task!
AFAICT the technical specification is not yet ready (or not yet public) but the informal description lists a number of very interesting problems and use cases. While other parts of the OLPC software platform are just usual software evolution in my view, Bitfrost is likely to change how we look at security. If it gets attention from the right people this might turn into a long needed revolution.
It remains to be seen how the concepts behind Bitfrost are implemented, but I'm looking forward to the detailed specification. It is definitely something we need to look into as Familiar gains support for cell phones.
Speaking of innovation, there's promising progress going on behind the scenes of Familiar. Currently, we are concentrating efforts on getting the infrastructure for the next major release right. As usual with infrastructural changes, visible results only come about when things are done, but I'm confident it will be well worth it in the long run.