The Griffin AirCurve Play is the newest speaker from Griffin that comes for iPhone 4.  It’s the improved version of Griffin Aircurve that was made originally for iPhone 3G/3GS. What’s so special about it? Well, its innovative and new technology increases the sound with 10dB. For most people this will be just a number, and might not seem that great. But what 10dB means is that the sound produced will be twice as loud than the one your iPhone is producing; and all of that without any need of extra batteries, electronics or cables.  We don’t know the whole story about the clever engineering technology behind it. However we know that this acoustic amplifier collects the sound from your iPhone and then amplifies it using a built-in coiled waveguide and then projects it into the room. (If your into more technical details or want