I was wondering if anyone else noticed their sleep button no longer feeling really solid? It feels like the plastic already wore out or something and sometimes feels a little bit squeaky when I slide along it or do a long press to bring up the flight mode /power off menu. I wonder if this change due to wear and tear is normal or if there's an issue here. Perhaps relatrdly, I've noticed a little dialog sometimes that says something like "power on/off?" That seems to pop up sometimes after I press the sleep button but I have a hard time duplicating it (this is not the normal phone options menu that a long press on the sleep button brings up). Thanks for your feedback.