Since Windows Phone got it’s update to Windows Phone 7.5 it is not recognized by piwik anymore. It shows up as UNKNOWN, please fix!
User Agent:
Mozilla/5.0 (compatible; MSIE 9.0; Windows Phone OS 7.5; Trident/5.0; IEMobile/9.0; HTC; TITAN X310e)
piwik version in use: 1.6 (latest)