Take some Soup when you go
There are several mobile apps for Discourse.
For Android, there is the Discourse Android app, with full push notification support.
On iOS you can download the Discourse iOS app. iOS users can also try Fig.
All apps have full push notification support and are completely free.
Geek Out on Discourse Github Channel
If you love Github, check out the Discourse Repo on Github. There is a huge amount there to play with.