Sony Ericsson's first Walkman phone, the W800i, has started to ship in Europe. The phone is simply a specialized K750i that comes with a slightly modified case, 512MB memory chip and a new cable that allows regular 3.5mm headphones to work.
The W800i can be imported into the US for about $500. It should be for sale in the US Sony Style stores later this month.
Check out our hands-on photos with the W800i.