Several readers have sent in follow-up articles to Wednesday's news that iPhone location data was being tracked and stored. First, it seems Android shares a similar problem, though the file containing the location data is "only accessible on devices that have been rooted and opened up to installation of unsigned apps." Developer Magnus Eriksson has created an app to flush this data. Next: the iPhone tracking file is not new, just in a different place than it used to be. Reader overThruster then points out a CNet story indicating that law enforcement has been aware of this file for some time, and has used it in a forensics context. This story is a growing concern for Apple, particularly now that Senator Al Franken (PDF) and Rep. Ed Markey (PDF) have both written letters to Steve Jobs demanding details about the location tracking. Finally, PCMag explains how to view the location data present on your iPhone, should you so desire.