iPhone 3GS power button pushed in?

[Neeliosis]

So I noticed while cleaning my iPhone that my home button was pushed in. Yes, it still works. But the weird thing is, when I have my case on it, it works, when I take it off, it doesn't. I have no idea when or how it got there. I'm still under warranty till September. My iPhone has taken a bit of wear, but everything else works fine. Could Apple consider this a "user-caused" damage? Or is it hardware? I'm planning on giving it to my little brother as a birthday gift, since I have gotten myself a 4.

 

[saving107]

I have exchanged my iPhone 3G and 3GS and iPod touch for the same issue, the genius told me that this is a known issue and is covered under Apple Care.

now, if the sensors in the headphone jack or under the 30 pin dock connector have been triggered (turned red/pink) due to water damaged, they will not replace it as your warranty has been voided.

 

[Neeliosis]

I have exchanged my iPhone 3G and 3GS and iPod touch for the same issue, the genius told me that this is a known issue and is covered under Apple Care.

now, if the sensors in the headphone jack or under the 30 pin dock connector have been triggered (turned red/pink) due to water damaged, they will not replace it as your warranty has been voided.

I just cleaned them out with a toothpick. LOL. They're both white! I'm gonna schedule an appointment now. Thanks for the help!