Indonesian phone maker Nexian launched a new phone called the Nexian Glaze M-9090 which sports a 2.4" transparent OLED. The phone costs $90.
OLEDNet says that the OLED panel is made by Neoview Kolon. That's the first time we hear of NK actually producing transparent panels. They have been showing prototypes for a while though, including 2.4" panels indeed. It may also be that this is a panel made by Futaba, who's been producing 2.4" transparent PMOLEDs for a while.