Now the Volcano T7 is on sale in Korea.
Features of the USB Stick style iRiver Volcano music player include 1 inch OLED display with 64x128px resolution, USB 2.0, SRS WOW HD, MP3, WMA, OGG and ASF format support.The iRiver Volcano comes in 5 colors and measures 84x26x11mm.
The 2GB Volcano T7 sells for 59,000 Won (~$57) and the 4GB has a price of 79,000 Won (~$77). There is no information available if iRiver will bring the Volcano to markets outside of Korea.
Via the iRiver site (Korean).