iPhone Problem!

I've had this problem with the home button of my iPhone for months and I never really thought of bringing it to Apple for repair.  But yesterday, out of the blue, the power button got stuck and I got so pissed when it happened.  I've been reading about it online and it is a common thing that happens to a lot of users.  Now, I'm not sure what to do about it. I contacted Power Mac Center if they can do something about it but I have yet to receive their response.  I got this iPhone 4 last Christmas and it was purchased in Singapore.

I've had pretty bad experiences with claiming warranty through service centers but I remember when my iPod broke a few years back, Power Mac replaced it with a new one.  I'm not sure though with my iPhone since it was purchased in Singapore.

Gah. Crazy world of service centers here I come.

P.S. Apple should totally replace the home and power button with some touch receptive button so that this won't happen to future users.

UPDATE: (November 8) So I went to Power Mac Center - Mall of Asia yesterday to get my iPhone checked.  The technical support people there told me that they cannot do anything about it.  Apparently, Apple only gave Globe the permission to repair iPhones in the Philippines.  Meaning, if you didn't get your iPhone from Globe, then your best option is to go to Greenhills and have it fixed there.  Screw that! I'll hate on Apple for a while. haha.