3rd party apps may have the ability to load custom ring tones in Windows Phone 7

ringtonewp7XDA-Dev hacker athompson has found a variety of undocumented permissions available to 3rd party devs, including one interesting one, “ID_CAP_RINGTONE_ADD:Allows ringtone-marketplace applications to read/write into the Ringtones directory”.

A recent brouhaha has been brewing about Windows phone 7 users being tied to the 30-odd ring tones built into Windows phone 7, but presumably an API to allow ring tones to be installed via 3rd party apps is soon on the way to address this issue. Interestingly Microsoft’s user guide for Windows Phone 7 already suggest users look in Marketplace for new ring tones.

Read more at XDA-Developers here.