[dktbs]

yes, you can access it remotely. mopidy is an MPD server, so any platform that has a compatible MPD client should be able to access it. The docs list a lot of the available clients and their compatibility with mopidy:

http://docs.mopidy.com/en/latest/#clients

[adamcik]

You can control mopidy remotely, but not yet stream to remote clients.

[pekk]

Mopidy is lacking some important features of mpd itself