Thinking of getting a Windows Phone 7 handset? Well, later this year, it should be a more tempting proposition with the Windows Phone 7 Mango update, also known as Windows Phone 7.5.According to TechRadar, a couple of developers for the platform have been highlighting features for the update, which is due to land on phones around September, the first major update of the platform since its launch last year. Bing is a big part of the update, with new features including Bing Audio, which is said to be a Shazam-like, Bing-powered service for identifying music, and Bing Vision, a visual search service which allows you to search using your built-in camera by scanning barcodes, QR codes, books, CDs or DVDs. Yes, a bit like Google's, but from a Microsoft phone.Other additions of note include SMS dictation as an option in the SMS application bar plus enhanced maps, now with turn-by-turn navigation and voice guidance, effectively turning it into a decent sat nav unit. There's also new app organisation, multitasking, faster operation and a new browser. More is likely to be added before the launch date.All sounds good and of course, it's all free to existing users. When we get a firm date for the upgrade, you'll be the first to know.