Most advanced Walkman phone yet -- works globally as a mobile phone and media player.

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All of three run on the Windows Mobile 2003 Second Edition operating system and come with the new mobile version of Windows Media Player 10 pre-installed (but you can use it to listen to stuff besides Joss Stone).

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Advances and scale in the media player and mobile telecoms industries have made these technologies accessible and affordable.

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By wrapping the iPlayer mobile website together with its proprietary Media Player plug-in, the broadcaster can offer access to streamed feeds of its material but will still not be able to let users download programmes for offline use - as is the case with its iOS app.

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Instagram just took a big step towards transforming its hit mobile photo app into a real-time, global media player.

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