People probably bring it up because you can often use OpenGL on a console, even if it's through a wrapper library instead of supported directly, or even if it's only "OpenGL-like" instead of fully compliant -- which still may be better than porting to the native format depending on the game. (Though the original XBox's D3D was pretty OpenGL friendly: http://www.emuxtras.net/forum/viewtopic.php?f=193&t=4009) So for the PS2, PS3, Wii, and handhelds like the PSP and DS, there are OpenGL or OpenGL-like wrappers available.