Last week the U.S. Senate Judiciary Committee held a hearing on the mobile location data collection issue. Both Apple and Google were brought in to discuss how their respective mobile operating systems - iOS and Android - deal with user's location data.
Now a second hearing with the Senate's Commerce Committee has been scheduled, and Facebook has been added to the list of attendees (which includes another round with Apple and Google). Notably, the Department of Justice is not involved in this hearing as it was in the first.
The topic to be discussed is "consumer privacy and protection in the mobile marketplace," including the notifications practices these companies use and how the collected data is stored and/or transferred.
The initial hearing came on the heels of the location data issue and focused primarily on data collected by Apple's iOS devices that was stored on an accessible file on Apple's iPhone and iPad devices. Apple described its data collection policies and its intentions for using the data (essentially a crowd-sourced database). Apple also promised to more thoroughly secure the data, prevent the data from staying on the phone for more than a few days, and delete all the data whenever location services were disabled on the device.
It appears the Senate isn't done with its examination of this issue, which also included Android devices and Windows Phone 7 devices (though Microsoft has not been included in the second hearing).