Apple is attempting to stop iPhone users from loading free ringtones onto the device. The new version of iTunes that adds the new ringtone creation feature also addresses the vulnerabilities that let users create their own ringtones using third-party solutions.

The non-Apple ringtone vendors only charge users for their software, not for the ringtones made. Apple instead gives away the software, but charges $1 per ringtone on top of the $1 needed to buy the song.

Hackers using iPhone ringtone software applications have already patched their programs to work around Apple's new block. Expect a similar cat-and-mouse game to progress here much like the many hacks available that let users strip DRM from iTunes-purchased files.