I don’t know about the speakers, but here’s an interesting tip from macosxhints that states it stops the GSM issues. I haven’t tried it. Please let me know if you do.
Really! Does it cause any reception issues? If not, I’m going for it too. It causes brutal sounds in my older honda accord when I have my iPhone in that car.
wow. Excellent. I’ll give it a try. I have a protective cover over my iPhone so the foil won’t be visible.
If this is all it takes to address this issue, I’d say there’s a design issue with the iPhone that needs to be addressed…Geeze, put the foil inside the case.