Apparently Techcrunch got a hold of a statement made by Tim Cook on an Apple Employee message board regarding the status of their desktops.

Coincidentally it was posted on the THIRD ANNIVERSARY of the last update to the Mac Pro.    
Still on sale, with three year old specs.  Still at full price.  Absolutely shameful.  Sorry Tim.   I'm getting a little tired of the "We have great stuff in the pipeline" schtick.  Show, Don't tell.