Honestly I was hoping to inspire something like this; where someone wants to learn to build something interesting that isn't just another todo app tutorial
If you do want to build it, I'm happy to share the iOS source with you!
I actually started trying to port it to Android after your first post. Only managed to get a compass prototype working though... might revisit the project soon!
If you do want to build it, I'm happy to share the iOS source with you!