Now working on a security/infrastructure/virtualization startup in the Bay Area. Not explicitly stealth, but we haven't done a public launch yet. We're happy to work with SaaS applications to secure their servers, though.
Aside from living on a Caribbean island during crypto export controlled 1990s, I've lived on a tiny artificial platform in the North Sea, plus more reasonable places like London, Amsterdam, Iraq, Afghanistan, Kuwait, and spent 6 months diving in Thailand. After all of this, I think the SF Bay Area is the best place in the world, at least for now.
My email address is ryan@venona.com