I gotta let this out of the "bag"... As you may know, me and quadzillion other iPhone and advanced GSM phone users are pissed off at this GSM buzz issue. When more people start buying GSM equipped cell phones (as they use in Europe), this issue will be bigger. The GSM buzz is caused by interference with primarily the speakers around you, like in your car, your office, on your deskphone wired headset, etc. The ferrite filters, as I had heard a rumor about, I bought from Radio Shack don't seem to work. BUT YOU'LL NEVER BELIEVE THE FOLLOWING UNTIL YOU TRY IT!!! So I searched again on the 'net looking for any snake-oils that would do the trick. I stumbled upon a guy "reselling" static bags (the ones that memory chips and sensitive electronics come in) as "a buzz shield". Not wanting to wait 2 weeks and spend $5 to see if that worked...I went searching for a used static bag in the building here. With Bob and Tom out (the most likely geek candidates for miscellaneous parts) I asked Paul who suggested the 3rd floor lab. I quickly had a static baggie to play with I put my baggie on my desk, and then simply sat my phone ontop the bag AND IT FREAKIN' WORKED! NO GSM BUZZ - GONE!!! Things this simple don't happen However, there are a "few" drawbacks to this. 1) You do lose some signal strength (my 5 bars went down to 3), so it is "blocking" something. 2) You have an unsightly bag laying around (although you could probably make it more attractive by putting it in a pencil holder or something that you stick your phone in). 3) You'd have to come up with something if you dock your phone in it's docking station, like I do, next to my attached computer speakers out of my laptop at work. 4) For the car, you'd have to somehow wrap it in a cupholder and put your phone in the cupholder, like I do. 5) I'm not sure this would work for the 3G phones that have the plastic shells - I've only testing this on my original iPhone 8gig that is made of metal. I did verify, at least in my situation, that I can still receive phone calls while it's on the bag, and that the Edge network works, but it is definitely slower - but normally you'd pick up your phone from the baggie if you did websurfing, reading mail, etc. This is a "free" solution to an issue that's been driving me absolutely crazy!