WOW,
I hope Apple will finally take care of the pro community ..... and Cinema Display 30" or larger.
it's about time!!!!!!
Why does Apple have to build a screen. There is no incentive for Apple to compete with other vendors for separate screens. There is a standard connector ( so they can't really make it proprietary, beyond going with the annoy mini-DisplayPort .... which will be an adopted/deployed standard soon. )
Between vendors like Ezio (or LaCie ) and top end NEC (SprectraViewII) on the high end color corrected front and top end Dells, HPs, Samsung prosumer IPS panel front, you can't find a monitor whose output meets or exceeds Apple's stuff? May not be exactly enclosure color coordinated with Apple looks but the images coming off the screen. However, the exact same monitor is needed in the much larger overall PC/Workstation market. The same vendors who fill that space for Windows/Linux are very likely going to be able to fill that space for the MacPro. The connectors are standard. Apple doesn't really sell integrated color correction ( so some vendor needs to fill those sensors also. )
This is very similar to the disappearance of XRaid. A very nice box but all of the connection were standard and there are other quality players out there who have much bigger market to leverage than just Mac market.
Additionally, Apple doesn't have to compete for monitors for those enclosed with the rest of the computer. Why compete if don't have to.
Apple will still sell the 24" display since it is in part a "docking station" with MagSafe , USB , mini-Display three headed hydra connection solution.
(none of which needed for Mac Pro ).
It has been what 3 years since a upper level Cinema Display. You think needed that much time to do one if wanted to? The 30" Display as McCoy would put it: "He's dead Jim".