Here is one great article by Bonnie Cha who explains what to expect from Windows Phone 7.
Source: CNET
In February 2010, Microsoft introduced Windows Phone 7 to the world. A complete overhaul of the company's mobile operating system, Microsoft got the tech world excited about it again with its fresh user interface, added features, and promises of improved performance. We've had to wait a long nine months since then to see if Windows Phone 7 actually delivers everything it promises, but we finally got a chance to find out.
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