It looks like this year is going to be the debut of Sony's Windows Phones. According to Digitimes, Sony along with a Taiwan based company named ODM Compal Communications is working on few Windows Phone 8 based smartphones. There may be atleast one or two phones and the first order's volume will be around ten thousand units each-report states.
Microsoft was in talks with Sony for the launch of a Windows Phone 8 and the phone maybe a part of Vaio series in which Sony is currently selling Laptops and Notebooks. There is no info on pricing and launch dates.