iPhones and 3G iPads Track Their Locations

This could be interesting. Alasdair Allan and Pete Warden report today at Where 2.0 that they’ve discovered that iPhones and 3G iPads have been recording their positions and storing them in one large — unencrypted — tracklog file, and are raising the alarm at the privacy implications. “Anybody with access to this file knows where you’ve been over the last year, since iOS 4 was released.” They’ve yet to hear back from Apple on this. The basic questions: what is the purpose of collecting this data, and why is it being stored in this (possibly insecure) manner?