Acting on recent concerns about data tracking on Apple and Google devices, Sen. Jay Rockefeller (D-W.V.) announced that his committee will hold a hearing on protection and privacy for mobile users.

“Reports of mobile devices tracking the location of users is just the latest in a string of concerns raised in the mobile marketplace,” said Rockefeller, who chairs the Senate Committee on Commerce, Science and Transportation. In his statement, Rockefeller added that consumers should know what information is being collected about them and how it’s being used. He wants to review how competition in the mobile market affects consumer policies.

No witnesses have been confirmed for the hearing, which is scheduled for May.

Last week, Sen. Al Franken (D-Minn.), chairman of the Senate Judiciary subcommittee on privacy, scheduled a May 10 hearing on mobile privacy based on reports that Apple and Google were tracking users’ locations via cellphone. Franken invited representatives from the companies, as well as privacy and security experts, to testify at the hearing.

In an interview Wednesday with All Things Digital, Apple chief executive Steve Jobs said Apple will attend the hearing.

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