From the MacRumors story:
Clearly, there are four times the number of pixels on the new display, and this all adds up to a resolution of 2048x1536, as compared to 1024x763 for the old model. The screen is still about 9.7" diagonally.
The Barco 3MP monitor sitting on my desk shows the very same numbers as the new iPad display.
You realize what this means, of course. The iPad has the potential to become the de facto mobile PACS platform. Of course, there are a lot of hoops to jump through before that happens, but trust me, it will happen.
I do have to add my own personal slant. I've got an iPad 1, and I'm not all that fond of it. There are a number of things it just does NOT do well, not the least being the simple writing of a simple blog by a simple radiologist. However, I did get a case with a Bluetooth keyboard, and this may help things. As far as graphic tasks, however, the iPad/iOS approach does seem to work well, and with the new Retina screen, there can be no worries about resolution. Now, contrast will be another story...will we have to only use PACS apps in the dark? Only the Shadow readers know for sure...