Japanese brand Planex have rounded off the corners of the traditional PMP with the MZK-WDPR, a vaguely rugby ball-shaped player.
Cased in the round shell is a 3.5 inch 320 x 240 resolution screen and the player supports MP3, WMA, MPEG4 and H.264 playback, an FM tuner, WiFi (for Picasa, Twitter, YouTube etc.)
The 2GB model costs 200 Euros / $277 (!)

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