Microsoft in talks with Sony to end 360 owner's Blu-Ray Blues

Recently there have been reports of Microsoft being in contact with Sony about providing an external Blu-Ray drive for the Xbox 360. This is great news for Xbox 360 owners, especially with big names like Blockbuster, Wal-Mart, Warner Bros. and Disney all being Blu-Ray exclusive. But when I first saw this it made me wonder why Sony would give away one of the major advantages the PS3 has over the 360. Blu-Ray has dug the grave for HDDVD and is chiseling out the headstone. Since Sony is the owner of Blu-Ray it makes you want to wonder why they would share their all-star with their rival. Microsoft has long stated that if Blu-Ray beat out HDDVD and the consumer demanded it, they would provide Blu-Ray support. But obtaining the rights to Blu-Ray from Sony I would assume would not be easy. Also there have been rumors flying around for the past few weeks that an Xbox 360 external Blu-Ray player was already fully developed and could be available as early as May. I never believed these rumors though because it just didn't make sense why PS3 would forfeit that upper hand they have.
But when I thought about it more, it might not make sense, but it might make cents. PS3s at launch were ending up costing Sony about $300 each AFTER retail. The cost to produce the PS3 was higher than the price they were retailing them at. Now they are at least breaking even on production costs and making up to $100 per console with the reduction in production costs. But Sony still racked up over a 1 billion dollar loss as a result of their over the top console. Could selling the Blu-Ray rights to the ever so rich Microsoft be Sony's attempt to compensate for their losses? Or maybe Sony just wants to be friends and hold hands with Microsoft and bake cakes.
My guess is the first one, the cake is a lie.