I don't believe apple has much of a warranty to void. I bought my 3G back in November of 09, and in April of 2010, I dropped my phone on the concrete right on the corner of the phone (where the silent/ringer slider is). This causes the phone to stay on silent, and the slider was not usable. I took the phone to AT&T, and they said the case has been opened (maybe a nanometer wide, but what do I know I'm just a general user, which apparently everyone is) and my warranty has been voided. To get a new 3G, I would have to pay 150$ (50$ More than I paid for the phone when I bought it). Whereas my buddy has had a Droid for maybe 2 months and has broke his phone 3x and lost it once and has received new ones free no questions asked each time.
Needless to say I know who is not getting my next purchase. Oh funny thing is, a month later my slider decided it wanted to work fine.
Also, I upgraded my 3G to OS4, wow that was a mistake. So many crashes to home screen, so many messages loaded after 20-30secobds. I downgraded to 3.1.2, jailbroke, and now I enjoy any ringtone/texttone/mailtone/tethering I want
Needless to say I know who is not getting my next purchase. Oh funny thing is, a month later my slider decided it wanted to work fine.
Also, I upgraded my 3G to OS4, wow that was a mistake. So many crashes to home screen, so many messages loaded after 20-30secobds. I downgraded to 3.1.2, jailbroke, and now I enjoy any ringtone/texttone/mailtone/tethering I want