My wife wanted to set one of her favorite song to a ringtone in iPhone 3GS. She asked how she can do it and then I started to look at the device and I couldn’t find an easy way to do it. So after Googling little bit, I noticed that it’s not a trivial thing to do. I was little surprised when I noticed that iPhone 3GS doesn’t provide an easy way to set a song from your music library as a ringtone as you would normally do. Like you can do e.g. with N900! It requires iTunes to “convert” an audio file to a ringtone. Basically what Apple wants is that all the audio files must be bought from the iTunes store if you want to convert them to the ringtones, but wait. There is a workaround for that and I’m gonna tell you how to do it.