Poor Infusio.  They just learned the hard way that mobile licensors are just warming the mobile slots for the media companies they are licensing from.  According to this article “Microsoft sued over Halo mobile“, MSFT wants out of their agreement with Infusio, and Infusio is accusing MSFT of sandbagging on approvals of Infusio’s Halo mobile designs.  
 
The way I read it, Infusio paid $2mil for the priviledge of teaching Microsoft how to build and deploy mobile games.  Midtown Madness, AOE and ZooTycoon were just chum to get the waters ready for Microsoft’s grand entrance.  Now that the Redmond gang are up to speed in mobile, they want their rights back so they can publish themselves into the deckslots and goodwill built up by Infusio.  It doesn’t hurt that Halo is their crown jewel and they will have their own internal mobile game to launch with Halo 3. 

The ultimate upside in a deal like this is not getting to publish Halo; the gold medal ribbon is having Microsoft acquire you.  This lawsuit seems to indicate that Infusio ain’t gonna win the gold medal ribbon.