Several companies are exhibiting new OLED lighting panels at the Lighting Fair 2009, in Tokyo.
Japan's Research Institute for Organic Electronics (RIOE) showed an OLED panel with 5,000cd/m2 luminance and only 15W power consumption (that's 15lm/W, like a incandescent bulb). They also showed a transparent OLED window (70% transparent).
Lumiotec, the Japanese joint-venture, had 1.9mm thick OLED panels on show. They actually plan to start making samples of those devices by fall 2009.
Panasonic actually displayed an even thinner panel - only 1mm. They think that OLED lighting will be ready within 2 years, but it will take much longer (10 years) for it to be used main lighting.
Philips exhibited their Lumiblade OLED panels. They recently built a new plant in Aachen, Germany, to make those panels.