Affected customers will be automatically notified within the next two weeks, T-Mobile added. "We however remain hopeful that for the majority of our customers, personal content can be recovered."
Also on Monday, Microsoft provided some additional information about what happened at Danger, the Sidekick software and services developer it acquired in 2008. "A server failure at Microsoft/Danger caused an outage that affected the applications and services available on the Sidekick devices," a Microsoft spokesman said Monday afternoon. The failure, the spokesman added, "impacted both the main and backup databases."
But Microsoft also made a point to distance its own cloud-based plans from the disaster. "The Sidekick runs on Danger's proprietary service that Microsoft inherited when it acquired Danger in 2008," said Microsoft's spokesman. "The Danger service is built on a mix of Danger-created technologies and third-party technologies. Microsoft's other cloud computing projects are totally separate from the Danger Service and do not rely on the Danger Service technology."
T-Mobile, meanwhile, yanked the Sidekick from its online store Monday. As of 2 a.m. Eastern today, the Sidekick was still listed as "temporarily out of stock."