Launching Pad Games (developer of The Pretender) are offering their wondrously humorous 2D adventure game Scarlett and the Spark of Life free on the App Store for today only, in conjunction with the addition of OpenFeint support to the first of four planned Scarlett Adventures episodes. The story is about a princess who is trying to foil the kidnapping of her sister, but before doing so she must first escape from the her own captors that had her tied up and saddled on the back of a horse.

This offer expires pretty soon, so you'd definitely want to grab the game before it goes back to the full price of $1.99.