Wrapping up the end of the first day. There's a chance I'll do more tonight, but I've got to pack for my trip. Progress was faster than expected. I have characters on the screen and movement.
One hiccup I had today was unprojecting the from a screen click to a point in physics space. I was doing camera.unproject(blah blah) and couldn't figure out why my Y-coordinate was flipped when I had correctly set my view. It seemed that whether or not I set y-down in my orthographic camera, as I clicked closer to the bottom of the frame, the larger the number got! It turns out if you're attaching an InputListener to a STAGE object in libGDX, it will be called with correctly unprojected x and y values based on the current camera, so I was double unwrapping. I figured this out when I made my camera follow the player and had different values coming in while not moving the mouse. Important safety tip.
The fruits of today's labor:
When meaning isn't clear, context lends solution. When vision isn't clear, contact lens solution.
Indy Game: The Movie - See it. Melodrama becomes irksome at points, but it does great things for inspiration.
Kii Keyboard: Download it. It's everything you could want from a swipe keyboard without the frustrating pieces. Works beautifully on a Droid 3 and doesn't interfere when the physical keyboard is in use.
O' Reilly Programming Computer Vision with Python: Buy it. It's a beautiful companion to the myriad theoretical books in the marketplace. Be forewarned that it's almost too applied, favoring an implementation to pseudo code. If you know the math and want to see it used, there is no better source.