Windows LIVE will launch May 8th with the highly anticipated ‘Halo 2′ for Windows Vista.  ‘Halo 2′ will be the first Windows game to have achievements.  In June ‘Shadowrun’ will become available being the first game to allow the cross-platform play between gamers on the PC and 360 with ‘Uno’ following shortly after.  Just like with the LIVE service on 360 the Windows platform will have the two different levels of membership allowing for different types of activity.

Silver Membership (FREE)

• Single GamerTag
• Common Gamer profile
• Common Gamerscore
• Single player achievements
• Private chat via text and voice
• Common friends list with online presence
• PC only multiplayer including browsing a list of active PC games

Gold Membership ($50 USD per year)

• All Silver membership features
• Multiplayer matchmaking with friends
• TrueSkill Matchmaking
• Multiplayer achievements
• Cross-platform multiplayer