A 30" planar display is simply too big for sitting in front of it and working. Many people who use multiple 20" or 23" displays place them at a slight angle (instead of just parallel) so that when you turn your head one way or another, you will be looking straight at one of the displays.
If Apple is indeed going to come up with a 30" LCD Panel product, it is more likely to be a LCD TV with built-in Airport Extreme that will enable a user to play DVDs from the DVD drive or stream movies from the hard disk of another Mac with Airport Extreme. The introduction of iPod proved that Apple is not afraid of entering consumer electronics business as long as they can add value through SW and computer connectivity. A "connected" LCD TV device will be the perfect entry point into another area of consumer electronics for Apple.
If Apple is indeed going to come up with a 30" LCD Panel product, it is more likely to be a LCD TV with built-in Airport Extreme that will enable a user to play DVDs from the DVD drive or stream movies from the hard disk of another Mac with Airport Extreme. The introduction of iPod proved that Apple is not afraid of entering consumer electronics business as long as they can add value through SW and computer connectivity. A "connected" LCD TV device will be the perfect entry point into another area of consumer electronics for Apple.