The NeXT Open Console? The iPhone SDK and Games
Oh dear. XNA (and the more closed DS and PSP) might actually have a run for its money, in the form of an “open” game platform on the iPhone. Admittedly there are all sorts of less than open issues associated with the iPhone, but for $99.00 you get registered and make games for the iPhone. The same price oddly enough for full XNA tool usage on the Xbox 360.
While the development environment forces you to use Objective-C, you can use OpenGL ES and OpenAL, which is also more open than DirectX 10 on XNA. So there are some interesting aspects to this device. I’ve also heard people making jokes about it being a Wii that you can make phone calls on.
Gamasutra - Apple Unveils iPhone SDK with Spore, Monkey Ball
Using the iPhone SDK, “third party developers will be able to build native applications for the iPhone with a rich set of APIs, including programming interfaces for Core OS, Core Services, Media and Cocoa Touch technologies,” leveraging iPhone aspects such as its Multi-Touch user interface, animation technology, storage, three-axis accelerometer and geographical location technology.