Wiredprnews.com reports, “T-Mobile Sidekick users may have lost all contact and other personal information stored in their phones.”

It seems due to a server failure, T-Mobile’s servers, which is operated by Microsoft, wiped all the data on the servers.  While this happened many users thought it may be a phone issue and took out their battery to reboot their phone only to find out that it was now permanently lost due to a server wipe.

read more here.