iToner (custom ringtones)

Earlier I said,

"I also use a product called iToner that lets you assign any ringtones you want on your iPhone. There are various reviews of it around the web. I've found it to work great. Don't know how it will work with 2.0. (It got wiped when I upgraded.) Use at your own risk. Apparently some dude got denied on warranty for doing such things but..."

Since then I've found out that there's a new release of iToner that works with iTunes 7.7 and iPhone OS 2.0.