It is... for now. I think the normal way apps work is they release on iTunes first since Apple is more stringent and has the larger paying member base, and then they roll out to Android after typically. Our partner on the magazine is handling all the technical stuff though so I'm not sure what the timetables are for an Android version.
If you keep up-to-date with the articles on the site and with this forum, there won't be anything new in it for you just yet. Assuming it's successful enough to warrant it I'd like to start introducing exclusive content for the app itself as well, though that'll be dependent on how well it does (and how long it takes to get there!).