Don't hold your breath -- I felt the same way about xserve before Apple shocked us with the axing of the server line.

I am certainly concerned that they might give it the official arse.

The only thing that gives me hope is that the Pro fits a small but important niche in the overall ecosystem: a system better suited for the developers of iOS applications than the iMac is.

What does the Mac Pro offer for iOS developers that the iMac does not?

More. Of everything.

More cores, more RAM, more GPU grunt to drive more screens.