If they come to us, we do all of the work and take all of the risk. They have no financial exposure. Making the client themselves is always risky. However you cannot look at it in terms of money only. When a game is ported to a second platform, it almost always exposes bugs and problems that would otherwise have been missed, as the developers have to re-work portions of the game. This will mean that creating a Linux version will increase the stability of the Windows version, and increase the quality of their core product, a fact that in itself may justify the cost of a Linux port.

Quoted in Robin Heggelund Hansen, "Porting games to Linux" hardware.no (2009-03-10)