Here's one to scare all you iPhone fetishists: You don't have to unlock, jailbreak or install unauthorized third-party software on your Magnifabrick to invalidate the warranty. Doug Rodriquez was able to do so merely by setting up a custom ringtone using a well-documented iTunes workaround.
Rodriquez started getting SIM card error messages sometime thereafter and went looking for some customer support. Apple basically told him to piss up a rope because they had "determined that (the iPhone) has been subjected to accidental damage or misuse, which is not covered by the warranty or an Apple service contract.” Says Rodriguez:
No word yet on what kind of warranty love using the Apple-sanctioned GarageBand method for installing custom ringtones will get you.
User denied iPhone warranty service for custom ringtone[iPhone Atlas]