Already mentioned at Gamefest 2007, Microsoft is planning to launch a Games For Windows variant of Xbox Live Arcade. The digital distribution service will naturally be aimed at the gamer who's more likely to be rearranging jewels on the desktop than snarling faces. A trusted source has furnished Joystiq with further details regarding the service, as well as a strange urge to refer to themselves in third person.

Internally labeled as "Vega" (possibly referring to the star and not the Street Fighter weirdo), the service is expected to launch in early November with 10-20 games. The portfolio of Live-enabled casual titles will match the taxonomy of Xbox Live Arcade and hopes to be bolstered by 2-4 new games every month following launch. Potential users will be funneled to the service from numerous Microsoft outlets, including MSN Games and the official Xbox website. Much like Live Anywhere, Vega contributes to Microsoft's goal of spreading the Live experiencing across multiple linked platforms -- and likewise aims to entice more and more people with Live subscriptions.

Developers, who will be responsible for costs associated with development, localization, rating and certification, will receive 60% of earned revenue, with Microsoft taking the remaining 40%. Game pricing will be similar to that of Xbox Live Arcade and can be set at either $5, $10, $15, $20 or $30. The 150MB size limit is also present, though developers will be allowed to exceed it when providing adequate justification.

The list of launch titles is currently unknown, a fact that will change once Microsoft's marketing machine lights up Vega come this November.

[Update: "We don't have any additional details to share at this time," said Microsoft, "but we are excited to be implementing this next phase of Games for Windows – LIVE. Please stay tuned!"]