The ongoing battle to see what part of WP7 is sucking up users data may just be drawing to a close. Seattle PI straight up asked Microsoft what the story is, and they claim they’ve found the culprit:
We have determined that a third-party solution commonly accessed from Windows Phones is configured in a manner that potentially cause larger than expected data downloads. We are in contact with the third party to assist them in making the necessary fixes, and are also pursuing potential workarounds to address the configuration issue in case those are needed. At this point in our investigation, we believe this is responsible for most of the reported incidents.
We are investigating additional potential root causes for the remainder of the reports.
A small (low single-digit) percentage of Windows Phone customers have reported being affected.
We are continuing to investigate this issue and will update with additional information and guidance as it becomes available.
Well, that’s all well and good, and here’s hoping there’s a fix in the works. Or if this is actually a solution.