Well he said Linux rather than Gnome, not sure which he actually meant.
As far as I'm aware Gnome have never really tried to get in on the phone/tablet space. I'm not aware if there is even a phone that you can purchase with Gnome installed.
I am less concerned about getting Gnome or Unity on my phone and more concerned about an experience that you get between iPhone and Mac. A seamless integration. Their is no single media player in Linux that does that. libmtp doesn't really work.
I have thought about doing that but I would like to setup a media player which automatically generate playlist based on my listening habits like most played, recently played, etc. And it to work two ways.
Playlists can be very useful.
iSyncr and iTunes can do that but I haven't found a seamless solution for Linux yet.
As far as I'm aware Gnome have never really tried to get in on the phone/tablet space. I'm not aware if there is even a phone that you can purchase with Gnome installed.