Mary Jo Foley is doing a series on Microsoft Code Names for upcoming releases.  

She did get one of the links wrong... The correct link to the CRM Team's blog post on Code Names. The correct link is: http://blogs.msdn.com/crm/archive/2006/08/28/728400.aspx 

Link to » A (Microsoft) code name a day: Titan | All about Microsoft | ZDNet.com