I suspect that Apple has delayed significant changes to the Mac Pro until desktop Retina displays are ready. Likely there was some snag, and the whole kit (inc

I suspect that Apple has delayed significant changes to the Mac Pro until desktop Retina displays are ready. Likely there was some snag, and the whole kit (including a Retina capable video subsystem) wasn't ready when originally planned. In that case, a small incremental update is the only option.