Even with their focus on the 360 platform, Microsoft found some time tonight at their E3 press conference to send some love out to PC gamers as well. They announced 30 new games for the Games for Windows platform, bringing their end of the year 2007 total to 60 titles. The newly announced titles were:

Age of Empires III: The Asian Dynasties (Microsoft Game Studios)
Bee Movie Game (Activison)
BlackSite: Area 51 (Midway Games)
Clive Barker's Jericho (Codemasters)
The Club (SEGA)
Company of Heroes: Opposing Fronts (THQ)
Empire Earth 3 (Sierra Entertainment)
Fallout 3 (Bethesda Softworks)
Flight Simulator X: Acceleration (Microsoft Game Studios)
Gears of War (Microsoft Game Studios)
Hour of Victory (Midway Games)
John Woo Presents Stranglehold (Midway Games)
Juiced 2: Hot Import Nights (THQ)
Kane & Lynch: Dead Men (Eidos)
Nancy Drew: Legend of Crystal Skull (Her Interactive Inc.)
Operation Flashpoint 2 (Codemasters)
Rise of the Argonauts (Codemasters)
Rogue Warrior (Bethesda Softworks)
SEGA Rally Revo (SEGA)
Sid Meier's Civilization IV: Beyond the Sword (2K Games)
Sid Meier's Civilization IV: Gold Edition (2K Games)
Spider-Man: Friend or Foe (Activision)
Star Wars Empire at War: Gold Pack (LucasArts)
The Witcher (Atari)
Thrillville: Off the Rails (LucasArts)
Turning Point: Fall of Liberty (Codemasters)
Universe at War: Earth Assault (SEGA)
Viva Piñata (Microsoft Game Studios)
Zoo Tycoon 2: Extinct Animals (Microsoft Game Studios)

I was previously under the belief that Vista was required for LIVE support. Which was supposed to be the reason why Shadowrun was a Vista only title, but now Microsoft is confirming LIVE support for both XP and Vista. It's a fairly interesting move.