Apple Inc. may soon offer its popular iTunes music service to customers with an unlimited access for downloading songs across different devices.

Apple is currently in talks with music publishers to offer the unlimited service, according to a Bloomberg report.

Bloomberg cites unnamed sources that it said have knowledge of the plans who said Apple is negotiating with companies including Vivendi SA's Universal Music Group, Sony Music Entertainment, Warner Music Group Corp. and EMI Group Ltd.

The aim is reportedly to provide a permanent backup of music purchased through iTunes and allow the backup downloads to iPads, iPods and iPhones that are linked to the same account.

Full story: Bizjournals