Tom's Hardware published an in-depth review on Windows Phone 7.5
After a long string of clumsy mobile releases, Microsoft's Windows Phone 7 strikes us as one of the better designs to pass through our labs. After more than a month of using the latest build on a Nokia Lumia 800, we think WP7 deserves consideration.The Windows Phone 7.5 Review, A Month-Long Experience
The name "Windows Phone 7" is somewhat misleading. Microsoft unveiled WP7 in 2010; in 2011, a massive update added a mobile version of IE9 supporting Web standards, Twitter integration, and multitasking. This update was called Windows Phone 7.5 (also referred to as Mango). However, the mobile operating system still goes by the name WP7. Specific references to version history usually make use of the code name.
