It uses git, so you can keep your address book on as many different computers as you want and use commands such as "git push" and "git pull" to handle the synch

It uses git, so you can keep your address book on as many different computers as you want and use commands such as "git push" and "git pull" to handle the synchronisation. There are no built in "ppl push" commands or anything like that at the moment. I was wary of tempting YAGNI and the inner platform effect until some valid use case becomes clear.