I hate to sound like a nagger. I do enjoy my iPhone 3G very much, but has anyone seen their power button starting to become less responsive? I turn my phone off a lot to save power, which means I hold down the power button occasionally, but now the button is starting to push in more and more and isn't giving me a clicking sound like the one's on display at the stores. Anybody else getting this feeling? It might just be me, but is there anyway to reverse this effect?