Microsoft has started to gradually push out the Mango operating system update to its smartphones, with 98% of handsets scheduled to get the upgrade by the end of October. Read more about the Windows Phone 7.5 Mango update

HTC has unveiled the HTC Titan and HTC Radar Windows Phone 7 Mango smartphones, the new handsets are the first WP7 phones to feature front-facing cameras. Find out more about the new HTC smartphones

This week's Which? Tech podcast focuses on mobile phones. Which? mobile phone expert Jon Barrow talks about the Microsoft Windows Phone 7 Mango update, while researcher, Ceri Stanaway asks if you've ever suffered from mobile bill shock. Google's Wallet, 4G trials and 36-month contracts are also on the agenda. Listen to the Which? Tech Podcast here

Check out the photos taken at the unveiling of the Mango update coming later this year to Windows Phone 7 handsets. See screen shots from the impressive new British Airways app and examples of some of the 500 new features. See photos taken at the unveiling of Windows Phone 7 Mango

Fresh from adding copy and paste to Windows Phone 7, Microsoft has set out its next planned update, named Mango. Read more about Microsoft's Mango update