We just got word from Verbatim that their Velve OLED lighting sample kits will start shipping in May. The price in Japan will be ¥90,000 ($1,050), we do not know the European or US price yet (it seems that Mitsubishi will market these in Japan and Verbatim will market in Europe). Full scale production will begin in July, and then prices will probably drop.
The sample kits include one color-tunable and dimmable OLED module, USB cable, software and a power adapter. Verbatim's software will allow you to program a color sequence (the default one will be red, green, blue, cyan, magenta, yellow). The panel itself is 145x207mm in size, and the actual emitting area is 123x123mm. The lifetime is 8,000 hours at 1000 cd/m2. You can read the data sheet here.