Here's a nice video review of Cowon's S9 Curve - with its 3.3" (480x272) touch AMOLED display:

The S9 curve has a touchscreen 3.3" (480x272) AMOLED display. It also has a 500Mhz dual-core CPU, Bluetooth, FM radio, TV out and a USB2 connector. The player will be released in the US in December 19th.

Kyulux - Hyperfluoresence OLED emittersKyulux - Hyperfluoresence OLED emitters