Will GTA4 introduce a version for a PC

Yes, a PC version has been announced. It will be released on the 18th of November in North America and the 21st in Europe.

New York, NY - August 6, 2008 - Rockstar Games, a publishing label of Take-Two Interactive Software, Inc. (NASDAQ: TTWO), is proud to announce that Grand Theft Auto IV will be arriving on the PC on November 18th and 21st in North America and Europe, respectively. "We are very excited to be releasing the PC version of Grand Theft Auto IV," said Sam Houser, Founder of Rockstar Games. "The whole team is dedicated to bringing an amazing gaming experience to the PC. The game looks and plays beautifully on PC and we can't wait for people to play it." Developed by series creator Rockstar North and set in Liberty City, the latest installment in the enormously successful Grand Theft Auto series features a painstakingly detailed and life-like city for players to explore; a rich, immersive narrative experience; an original soundtrack highlighting the cultural eclecticism of Liberty City; and newly expanded multiplayer just for the PC.

The press release can be found here:

http://ir.take2games.com/ReleaseDetail.cfm?ReleaseID=326627