Pixld, the iOS puzzle game from Portal co-creator Kim Swift and Quantum Conundrum developer Airtight Games, is now available on the App Store. It's currently going for an introductory $0.99, but having introduced itself it'll return to a regular price of $1.99.
The games gives players a grid of cyan and navy blocks, tasking them with making color-matching rectangles by flipping the blocks' colors. Sounds simple, except flipping a block's color also flips the color of every adjacent block. With time-based, moves-limited, and one-life modes, Pixld is a test of vision, reflexes, and strategy. Oh, and it has weird textspeak-like shorthand in its menus, but don't worry, it's nothing too egrgs.