IPhone 3G S plagued by sound issues?

Are you enjoying your brand new iPhone 3G S? Did you get a 16GB or a 32GB? Well, that won’t matter if people are experiencing what we are. There seems to a problem with sound files on the 3G S and the result after they’re triggered. After they are done playing — like the unlock sound, SMS sound, for instance — the iPhone emits a high-frequency tone. No, were not kidding. Something pretty high around 15KHz. We’ve confirmed this isn’t a local isolated issue with our phone,and since some people can’t hear these types of high-pitched tones, your iPhone might produce it yet you’d never notice.
We’re 99% sure it’s software related because if you set the phone to vibrate, big surprise, no high-pitched tone. So, anyone out there experiencing this? It’s amazing this was skipped over in the many reviews published, but oh well. Hopefully Apple fixes it soon because this is kind of painful and pretty outrageous. Hit us up and let us know!