Quote Originally Posted by Feyniphia View Post
Direct X belongs to Microsoft, it CANNOT be on a SONY console. It'll be an alternative to it.
No, PS4 can use DirectX 11. But it also offers tweaks to DX11

Microsoft might own the DXapi and license it out for use. Microsoft has firmly established their product as the industry standard for development tools.

SONY could have made their own API but run the risk of creating another PS3 situation where developers ran into trouble coding, and the console quickly gained the reputation as being difficult to program for. SONY might have to pay Microsoft in licensing fees, but SONY makes their console more attractive to developers by offering an environment they are already familiar with. Which leads to faster dev times, reduced costs and simultaneous ports between platforms.

At a presentation at the Game Developers Conference today, Sony Senior Staff Engineer Chris Norden went into greater technical detail on some of the PlayStation 4's underlying hardware...
Sony is building its CPU on what it's calling an extended DirectX 11.1+ feature set, including extra debugging support that is not available on PC platforms. This system will also give developers more direct access to the shader pipeline than they had on the PS3 or through DirectX itse
http://arstechnica.com/gaming/2013/03/sony-dives-deep-into-the-ps4s-hardware-power-controller-features-at-gdc/