I really mean like just for coders y'know? Like coders sharing accommodations with other coders. Like a global network of people doing this, for example Couchsurfing, or maybe a better example would be Warm Showers, which is for bicyclists.
Does anybody else think it would be cool to travel and connect with other coders? You'd get exposed to many programming ideas, and it would be a way to connect with other developers directly and socially, and your hosts could relate to you, being as they are fellow coders.