We're a step closer to total liberation from our desktops, thanks to the free new Vox for Skype service that lets you make and receive Skype calls on your mobile. Any mobile.

Don't take my word for it. "Vox for Skype works with all 2.2 billion mobiles in the world today!" yells the Voxlib website. "It even works from any landline phone. It works from any device, on any network, anywhere." That's one hefty promise. If you put it to the test, let me know how you get on.

The key to Vox's pan-mobile compatibility is that the online plug-in only needs to be downloaded to your PC – there's nothing to install on the phone itself, and you don't need a mobile data service plan. The only catch is that you must be logged into Skype and have it running on your PC when you make or receive the call.

You can download Vox for free from Voxlib.com, but I advise that you get in quickly – I get the impression it won't be free forever. Find out more on Vox's FAQ page, and in Skype's Extras section.

By the way, iIs it just me who's whizzed right back to 1987 by the mere mention of the word "vox"? Back in those days I believed that Vox was Bono's surname, though I'm not quite sure where this came from; maybe I dreamt it. And there used to be a great monthly music mag called Vox. Sadly, it went to the great TotP studio in the sky, later to be joined by Select, Melody Maker and even Smash Hits. But I digress...)