'Halo 4' not being ported for PC

Microsoft have confirmed that their recently released AAA title, Halo 4, will not be ported to the PC.

This Penny Arcade article states that a MS representative was asked specifically about a PC port for the game, which he stated;
Halo 4 was designed specifically for Xbox 360, and while were always exploring new ways to expand the franchise and share the Halo experience with as many fans as possible, we do not currently have any plans to port Halo 4 to PC.
The PC hasn't seen a Halo port since Halo 2.

Via VG247