I had a very good working day on Sunday with my game development partner. On Thursday we agreed the scope of our previous project was too large for our tastes, and decided to go in a new direction. So far that decision has been a good one, the new idea we're running with is much smaller scope, and we're able to reuse a lot of content and code from the last project.
Last night I mocked up the movement for our main entity and it feels pretty good. The other cool thing we did was build and publish a test build to an iPhone and an Android device. So far there's no content or real gameplay yet, but it's looking much less daunting now.