Update: We just got word from RiTDisplay saying that they are still producing OLEDs and do not plan to stop. Good news!
ResearchInChina has released a new report (Global and China Small and Medium-sized Display Device Industry Report, 2009-2010). From the display Abstract, we learn that RiTdisplay (makers of PMOLED displays) are currently focusing on touch displays, and might withdraw from OLED production completely.
RiTDisplay are the world's largest PMOLED maker, with over $100 million in revenue from PMOLEDs in 2009.