There is now a Discourse app for IOS and Android

The 1.7 version of Discourse installed here includes official IOS and Android apps for your phone device. It allows you to pull together multiple Discourse sites into a single, sort of aggregated view.

I’m kind of intrigued by the idea of federated social media sites (as opposed to centralized ones like Facebook or Twitter). There isn’t really a lot of inter-site interaction possible with this app. It’d be cool if you could share links or user profiles or other things across sites. This app is a necessary first step towards that kind of thing, though.