Mobile ringtones are cool. They are a huge business these days because there are no good ring tones available as a default on your phone when you buy it. You HAVE to get an aftermarket ringtone. This site MobileSidewalk Ring Tones has the best ring tones and a really easy sign up process. Its cool because all you do is enter your phone number, get the text that it sends you, enter the site and choose your ring tones. Its supported by all the major cell phone service carriers so it should work for just about everyone. I have to go look for a new ring tone now, everyone has the same cingular default one that I have and its weird to hear it and think my phone is ringing all the time. Check out mobile sidewalk.