T-Mobile’s Sidekick users had a pretty rough time this week thanks to a mistake that first looked enormous but eventually was pretty much fixed, though with no small amount of worry and strife in between. An unfortunate series of events caused a major inconvenience for users of the smartphone, and it might have you thinking twice before entrusting a whole bunch of data to a cloud service without first making a backup copy to keep. When you save data on your mobile device — a new phone number, a calendar entry, etc. — where is it stored?
