The new iPhone 3GS has pretty much been kicking butt in every possible way that a new smartphone can. It's going to pull in well over 500,000 sales on its opening weekend and critics and customers alike are raving about its new features and improved speed. We'd almost started to think that there couldn't possibly be a chink in the mighty new iPhone's armor.

Then we heard about this. Boy Genius has reported that multiple users are experiencing sound issues with their new iPhone. Apparently right after a sound file is played the iPhone starts to play a continuous, high-frequency tone. They claim this tone is at around 15 Khz, which means it is too high for some people to even hear. For those who can, it is quite annoying.

If you're having this issue, setting your phone to vibrate will stop it for a while at least. It's probably a software issue, in which case we should see a fix to this come in the next couple of days. No other news sites have reported the issue, but I expect we'll hear more about it over the next day or two as the release hubhub dies down.

Did you purchase an iPhone 3GS? Have you noticed the sound issue, or any other problems or glitches in the phone? Email i4u and let us know what's up!