At its press conference today, Microsoft confirmed it will publish Alan Wake exclusively for Xbox 360 and Windows Vista platforms.Developed by Remedy, Alan Wake places gamers in the role of the best-selling suspense author of the same name. He has retreated to a small town to recover from the mysterious disappearance of his fiancée."Our teams are dedicated to pushing the envelope of the gaming experience for Windows and the Xbox 360 with Alan Wake," said Frank Pape, senior director of business development at Microsoft.
http://xbox360.ign.com/articles/706/706267p1.html
Taken from the E3 2006 supplement