We know Apple iPhone doesn’t allow ringtones beyond its pre-designated package, but this case comes out of Canada: according to BB, it doesn’t allow users to make their own MP3 song files and assign it as a ringtone. “In mid-August, Rogers mandated that all their cell phones prevent users from utilizing non-DRM .mp3 files as ring tones. It was supposedly at the request of the music industry.”

Which other operators in U.S., UK and elsewhere does this happen? Let us know in comments below if you have any other instances.