Forget about the iPhone - Windows smartphones are where it's at. And the cool cats at HP clearly think so, because they've just come up with the company's first phone ever, which uses the Windows Mobile operating system.

So far, it's fairly similar to most Windows smartphones, although one addition that's pretty conspicuous is 'internet calling', which uses the wi-fi and data functions of the phone to place calls over the internet rather than using the phone network. The name of the phone - the HP iPaq Voice Messenger - bears this out.

This is something the mobile phone networks are a little scared of, because it means they'll lose some of the revenue they get from calls (although they might make it up through the data costs). So far, we haven't heard which UK networks - if any - are going to take the phone. Watch this space for more information, and a full review, shortly.