I have been using Itoner for a few years and I have a big qualm with their customer support and recent response of not fixing itoner for 64 bit iTunes (basically you lose all your ringtones after every sync). Instead they tell you to run iTunes as 32bit and since that method works they aren't focusing on updating itoner presently as according to them they don't see an issue. I would avoid them for the poor attitude of support.

Nakko.com has many thousands of Ringtones for FREE. I have dozens that work fine on my iPhone.

Not to say the name of the application is bad, but it tends to appear under certain searches for printer utilities ^_^ y'know "Toner."

To get iToner working with the latest iPhone software 1.1.3 try this workaround which is posted on the developers forums.

1. Launch iToner and connect your iPhone
2. Use iToner to remove any existing ringtones.
3. Import any of your ringtones into iTunes if they are not already there.
4. Select your ringtone in iTunes and choose "Convert Selection to AAC" from the Advanced menu. (if this option in the Advanced menu says "Convert Selection to [any other format], then open iTunes preferences, click on Advanced, then Import. Then change the "Import using" menu option to AAC. After this the item in the Advanced menu will refer to AAC.
5. Drag this converted file to your Desktop.
5. In the Finder, change the file extension from ".m4a" to ".m4r". Select the file and then go to the File menu to Get Info. Change the file extension to m4r. You should get a dialog box confirming the change. Change the filename for this file only (you will have to do that for each ringtone, but if you go ahead and say yes to using m4r for all aac files, all of your audio files will be converted to ringtone format).
6. You can now use iToner to sync the ringtone back over.

:)

Great app, but once synced i get no sound.. Maybe it doesn't work for 1.1.3 version

Copies (and deletes) my homemade ringtones to the iPhone, but they do not make any sound. I'm using regular M4A files. :(