The powerful Cowon Q5W runs Windows CE 5.0 on the Alchemy Au1250 600MHz and features Wifi and Bluetooth connectivity.
Other features of this interesting portable media player include a 5 inch touch-screen with 800x460px resolution, 500:1 contrast ratio, 200cd/m2 brightness, 64MB Flash, 128MB DDR2 SDRAM, MP3, WMA, ASF, OGG, WAV, FLAC, APE, MPC audio format support, and AVI, ASF, WMV, MPG, and OGM video format support. The measurements of the Cowon Q5W are 5.46 x 3.48 x 0.79 inch.
The Cowon Q5W with 40GB HDD sells for $549.99 on the Cowon JetMall.
The Cowon Q5 (now Wifi) with 60GB sells on Amazon.com for $599.99.
Gadgetaholic already got their hands on a Cowon Q5W and published unboxing photos. They seem to have issues with the wireless connectivity.