Tinkering with pixel-pushing on the phone.

Pixels: An almost comically unambitious project: takes an image, and updates it
pixel-by-pixel using the Von Neumann (nearest neighbor) neighborhood. Canonical example: Conway's Game of Life.

LuaPixels: Same as above, but the pixel transformation rule is applied through user-input Lua code. Currently gets about 4s/frame on the phone on the Game of Life.