Cowon shows at the IFA 2008 in Berlin a new mp3,mp4 player named S9.
The Cowon S9 does have a 3.3 inch AMOLED Capacitive Touch Screen with 480x272 pixel and 16 Million Colors.
Cowon S9 16GB Portable Media Player (Titanium/Black)

Product Description
3.3-Inch 16:9 Wide AMOLED, 16 million colors, res. 480x272, ultra portable Play all your digital entertainment: movies, TV shows, photos and music Touch sensitive interface Bluetooth, Voice recorder with internal microphone, FM radio and TV-out supporting composite connections Maximum 11 hours of video playback and maximum 55 hours of audio playback

Product Description
The COWON S9's innovative design features a titanium/black face and a curved-back casing surrounding a 3.3-inch Active-Matrix Organic Light Emitting Diode (AMOLED) touch screen display. To complement its sleek form design, the S9 features an exclusive GUI system boasting capacitive touch screen operation, advanced video functionality supporting transcoding-free playback of most DVD-quality MPEG-4 videos and TV output, Bluetooth 2.0 support for stereo headphones, G-sensor accelerometer for auto-pivot display, and extended battery life of 11 hours for video and 55 hours for audio. The S9 is also the first COWON player to offer next-generation JetEffect 2.0 audio technology with improved EQ filter, stereo enhancement and BBE+, which includes upgraded BBE, Mach3Bass, 3D Surround and MP Enhance audio processing.

Display review from Engadget

We have to assume that the 3.3-inch AMOLED display is one of the S9's biggest selling points, and for good reason. The 480 x 272 resolution screen is positively gorgeous to look at, displaying rich, vivid colors on everything lucky enough to tickle its pixels. Video looked superb, images were almost unbelievably sharp and bright, and the overall user interface was quite a joy to gaze at. Couple that with the fact that it's a capacitive touchscreen and you can understand why we're pretty much head over heels on the panel. Other PMP makers should definitely give AMOLED a look; it sucks down less juice, it's brighter and sharper in every circumstance and it makes users (or us, at least) actually want to watch videos on it.