Rumour has it that Apple has caused a shortage of OLED screen components, possibly for their upcoming tablet or 
possibly for the iPhone 4G.
“We were told that Apple pre-ordered them all. All 10 inch LCDs, and all 10 inch OLEDs too,” an anonymous designer commented during CES.
Another rumor from last year said that the tablet had been delayed because Apple was waiting for OLED components for the device. It seems plausible then that Apple could be behind an OLED shortage, as they can usually control component prices due to the bulk in which they buy. As they have done with flash memory in the past for iPods and iPhone’s.
The source also says there is also a shortage of LCD screen components of the same size, hinting that Apple may offer an LCD model alongside the OLED model, maybe as a low end option. Only time will tell but it’s not long now until the event where the tablet it due to be unveiled.
Sam's Blog 