Should Microsoft Buy RIM?

Today, I heard someone muse about Microsoft (MSFT) buying RIM.  An intriguing thought.  On first blush, I thought, why of course.  And both customer sets have a similar mindsets. As opposed to the iOS and Android customers.  MSFT may be able to give RIM the resources needed to create a seamless environment, outside key logging by Carrier IQ (installed by the cellular carriers on your cell phone), with the rest of the world.  Blackberry has some apps and the security reputation, MSFT has other pieces of the puzzle.

It's a dicey bet, but what does either company have to lose at this point?