High Pitched Whine While Screen Is On

[Luigi239]

I have just noticed that while holding my iPhone 3gs to my head (around the earpiece) while the screen is on + backlit, there is a very high pitched noise that I can constantly hear. This is not the same thing as the 15khz tone as it's comming from the earpiece and only when the screen is on.

Is this happening on anybody else's phone?

 

[applecheese]

yep, it's happening with my 3G.