Bungie, developer of "Halo, Myth and Marathon," and Activision, have entered into an exclusive 10-year partnership to bring Bungie's next big action game universe to market. Under the terms of the agreement, Activision will have exclusive, worldwide rights to publish & distribute all future Bungie games based on the new intellectual property on multiple platforms and devices. Bungie remains an independent company and will continue to own their intellectual property. Given the tremendous success of the various Halo games--all told, they have generated more than $1.5 billion in sales--an exclusive deal to publish Bungie's next series of games is a very big win for Activision, and a blow to its rival, Electronic Arts. It's also, of course, a loss for Microsoft. That's because Bungie, which until 2007 was a Microsoft-owned studio, has had its games published by Microsoft Game Studios and has developed solely for the Xbox 360 platform and Windows computers. But now, Bungie's new deal--the financial terms of which were not revealed Thursday--will be cross-platform, meaning that the developer will likely be working on games for Sony's PlayStation 3 and possibly Nintendo's Wii. Bungie will still finish work on the latest Halo title, Halo: Reach, which is scheduled for a fall 2010 release.