I thought I was future-proofing myself a bit by buying a Griffin AirCurve. The AirCurve is an ear-trumpet kind of thing that acoustically amplifies the output f

I thought I was future-proofing myself a bit by buying a Griffin AirCurve. The AirCurve is an ear-trumpet kind of thing that acoustically amplifies the output from the iPhone's speaker. You wouldn't call it hi-fi, but it works surprisingly well. I figured that the iPhone 4 would just require a different dock insert to hold the new shape firmly, but no dice: Apple have also swapped the positions of the speaker and microphone vs. their positions on previous iPhones.