If The 50" Is Only 1920 x 1080, It Will Likely Be Overpriced
True that. I just bought a 6000:1 Contrast CCFL Samsung LN-S4095D 40" 1920 x 1080 HDTV with dual HDMI inputs and PIP including sound swap so my EyeTV Quad G5 can play second tuner to it for only $1680 delivered. I doubt the Apple 50" will sell as cheap. All the updated displays should have a CCFL backlight to fix poor Color Gamut problems print and video pros have had to date.They HAVE to update the displays soon because the 23" panel (LG LM230WU3) used in the 23" Apple Cinema Display is being discontinued in favor of the new 24" panel (LG LM240WU1), which means they have to switch panels. There's also a new 26" panel (LG LM260WU1) with better specs, but I don't know if Apple will use that one.
There's also a new 30" panel (LG LM300WQ1) with better specs (1000:1 contrast ratio, 92% NTSC color gamut), which the HP LP3065 and the Dell 3007WFP-HC are already using, so it seems logical that Apple will be next. The 20" will probably just get a brightness upgrade.
I don't think Apple will release a display larger than 30", but who knows. If they do, it will probably use a 1920x1080 panel. I don't know of any panels larger than 30" with a higher resolution.