Not much has been said of Sony's unique W Series Walkman since its unveiling at CES this year, but now the player is on sale and available in a vivacious pink hue for all the ladies in attendance. Or fashion-forward gentlemen, whichever. At any rate, said player -- which is more formally known as the NWZ-W202 -- is expected to start shipping out as early as tomorrow, bringing with it 2GB of inbuilt storage space, support for MP3, AAC and WMA files, a battery good for a dozen hours and a three minute "quick charge" feature that provides up to 90 minutes of playback. Catch it right now i