Looks like sony's adopting OLED in a big way...
Source : Sony makes video bid to challenge iPod
The NW-S700 (pictured below) comes in a variety of metallic colours (black, violet, gold, and pink), is flash-memory based with capacities of between 1GB to 4GB, and contains an FM tuner. You'll be able to see tiny artwork and track listings via a 3-line OLED display.
Sony claims that the NW-S700 series delivers the highest sound quality in Walkman history due to the integrated noise cancellation technology and bundled 13.5mm headphones, which uses the integrated in-line microphone to detect and respond to environmental sound. Sony claims this will reduce ambient noise by around 25%.
Models in the cheaper NW-S600 series will not feature the radio or the noise-cancelling technology and will come in black, blue or pink. Sony said that consumers should expect around 50 hours of playback from both devices.
A 4GB S700 model is expected to sell for around ¥29,000 (approx. £130) in Japan, whereas a 1GB S600 model should be as little as ¥15,000 (about £68), which is at a slight premium compared to similarly spec'd iPod shuffles.
A Sony representative stated that the new NW-S700 Walkman models are to be launched on the 21st October, whereas the NW-S600 products will appear on October 21st, in Japan.
Source : Sony makes video bid to challenge iPod