I can't really explain the details of why, but we want an auto-updating display of newspaper front pages from around the world. We can get the newspaper front pages as PDF's, but then we need to display them. Anything lower res than the 2405 doesn't seem to be readable with a the full front page of the NY Times displayed. I'm also looking at the 30" Cinema Display and (in theory) IBM's T221. Also perhaps one of the Native 1080p HDTV LCD's.

You can see my test output in the various resolutions here:
http://ih-ws1.berkeley.edu/~mkocher/newspapers/
They're just default ghostscript output, I havn't looked into making them more readable at the same resolution yet.

The T221 would be beautiful, but I can't imagine it would justify the price. (And the majority of people would probably be more impressed with 30" Cinema Displays anyways.)

Matthew