Despite recent rumors that Facebook and FarmVille developer Zynga were gearing up for a legal battle, the two announced yesterday that they have signed a five-year agreement over how virtual currency will be used. Quoting: "The source of the conflict ... comes down to Facebook's decision to introduce Facebook Credits, an over-arching currency system to be used in all games on its platform. This allows users to purchase just one type of currency for use in Facebook games, rather than buying directly from individual developers — a lack of direct control over its monetization that became a major point of contention for Zynga. Also likely an issue is Facebook's decision to take 30 percent of revenues gathered from credits, with 70 percent allocated to the developers."

As promised when the Humble Indie Bundle hit $1 million in donations the other day, indie developer Frictional Games has released Penumbra: Overture's source code. "The code for Penumbra: Overture is a continuation of the one used for the tech demo + some addition for the not so long lived Robo Hatch project. It also contains some code from Unbirth, giving it quite some history." The release also includes the HPL1 engine. "This is engine that has powered all of the Penumbra games and it even includes the stuff used to create the 2D platformer Energetic. The engine code was started in December 2004 and was actively developed until early 2008." The repositories are available at github.

Ant writes "Popular Mechanics shares a short article on an exclusive look at 36 years' worth of National Transportation Safety Board (NTSB) reports and seating charts to determine the best way to live through a disaster in the sky. Move to the back of the Airbus."