iRiver's European website now shows a 1GB and 2GB model will be available at launch. However, there's still no information on iRiver's American website and there's no word yet on the higher-capacity models which will feature a 8GB MicroDrive.
Anyway here's a quick look at the features of the U10:
"direct click" controller, push the top, bottom, left and right
sides of the screen to navigate