I'd love a hosted (eg, internal) service, that lets users create projects of people, and they can check files in/out, have them entirely versioned, etc etc. Ma

I'd love a hosted (eg, internal) service, that lets users create projects of people, and they can check files in/out, have them entirely versioned, etc etc. Make it so you check files in/out via Mac/Windows/Linux shortcut menus, rather than clunky web apps.