Need a ringtone on the fly? If you don't mind spending money for a 30-second ringtone, Apple has you covered in iTunes. The latest iOS 4.3 release is the gold master and this firmware brings ringtone purchasing to the foreground. The update will be available to AT&T iPhone users starting on March 11, 2011.
Currently if you're interested in buying a ringtone from Apple, you have to find the ringtone collection within the iTunes app. To navigate there now and preview ringtones you must open the iTunes app, select More from the bottom menu and choose Ringtones. Not difficult, however many iPhone users forget the feature is even an option.