I noted last year in one thread here, that the Japanese had invested heavily in OLED R&D.
MITI seems to believe that this technology will be profitable to manufacturers. The last time I checked in 2007, the R&D figure invested was around 25 M Euros.
I remain hopeful that wall vids will someday arrive, and that Julie Christie will come bursting out in 3D in Farenheit 451 someday in the near future.