I've seen a HTC one a while ago, but this was pretty expensive at £20. Anyone got any ideas if there's something cheaper out?
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Hmm it looks like the Shure one was discontinued, but here are some other options: http://www.tuaw.com/2011/02/18/inline-remote-controls-for-ios-devices-that-work-with-your-curre/
And here's the Fiio amp: http://www.fiio.com.cn/products/index.aspx?ID=100000011375372&MenuID=105026001