The Green Data Center Blog reported that a “Failure Sinks the Server in Microsoft/Danger’s Client/Server Model – Client Data unrecoverable“. I’ll let y’all go to the article and read all the gory details, but the basics are that the system suffered a critical server failure which lost all of their client’s data. The letter Microsoft sent to it’s customers includes the following:

In addition, we plan to communicate with you on Monday (Oct. 12) the status of the remaining issues caused by the service disruption, including the data recovery efforts and the Download Catalog restoration which we are continuing to resolve. We also will communicate any additional tips or suggestions that may help in restoring your content.

We recognize the magnitude of this inconvenience. Our primary efforts have been focused on restoring our customers’ personal content. We also are considering additional measures for those of you who have lost your content to help reinforce how valuable you are as a T-Mobile customer.

We continue to advise customers to NOT reset their device by removing the battery or letting their battery drain completely, as any personal content that currently resides on your device will be lost.