"Pogoplug has put the source code for its servers in escrow. If the company goes bankrupt, the terms of the escrow dictate that the code be released to SourceForge as an open-source library."
This I like. It wouldn't fly for all companies, especially as you get larger (or get bought), but it's a really nice simple idea. I'd imagine it creates an awful lot of trust between the company and the users, which is always a good thing.