Ok basically I purchased a invisible shield type screen protector. You know the kind that involves you basically dipping the screen protector into soapy water and applying it to the device and squeegeeing out the excess. Well everything was fine and hunky dory until I got to the squeegee part. Alot of water kept getting into the home button and ear piece, of course I was being quite quick about absorbing it with a towel. But I am still worried that a very small amount of water may had seeped in. Also I am a bit worried that water may had somehow seeped into the phone from around the screen and glass back "when applying the back protector" and I suppose water may had gotten slightly onto the side with the volume buttons. Basically though, after applying the shield I let the phone sit for about two hours, and now about 10 hours later I still haven't noticed anything wrong with the phone. I checked the speaker, mic, front and back camera, display, touchscreen, volume buttons, mute switch, home button, power button, and headphone jack, and all is fine as it was prior to applying the IS. So is there anything to worry about, such as possible long term corrosion or prolonged failures? I'm sorry for being such a worry wart, but you gotta understand based on how much it costed and the fact I have to keep it for 2 years at least.