Called Privatunes, it was developed by the founders of Ratiatum and the brand-new Matoumba news reader.
It's freeware which allows users who buy iTunes Plus tracks to wipe their tracks clean, erasing the AppleID (email address) and username.
Guillaume Champeau runs Ratiatum and, "We believe anyone who buys DRM-free songs online should be free to do whatever they're legally entitled to do, including to sell it or let their close family or friends copy it, with no fear and no one spying over their shoulder."
Champeau says in his view, there's zero need for a permanent personal ID tag when you sell something.
"There's no reason to attach the name and email address of the buyer on whatever is being sold. Selling is the act of transfering a property from the owner to the buyer, and they should be no limit or restriction whatsoever.
"It's what differenciates the so-called selling of a DRMed song (which is nothing other than long terme rental) and the selling of a DRM-free song.
"It's a question of privacy, it's a question of seller-customer trust, it's a question of customers rights."
Download Link: Privatunes