[brett k]

I just bought this clever little plastic clip that clips into your charging port and makes your speaker a whole lot louder, you can also hear while playing games cause your hand no longer covers the speaker, check it out!
ThinkGeek :: SoundClip iPhone Audio Booster

edit: I take it back, it doesn't raise the volume at all, except it does keep your hand from covering the speaker.

[brett k]

edit: it does work OK on iphone 3g (I have 2g) so i gave it to my friend.

[StealthBravo]

looks cool

[ZipZapp]

I dont think its the amplification that is important here but the redirection of the sound.

This fixes a flaw with the iphone. The speakers do not project in the direction of the viewer/listener.

[ZipZapp]

Got one and returned it. Does not work because it cannot make a good acoustic seal. I saw no improvement.

Cupping my hand at the bottom on my phone worked better.

Now the AirCurve works surprisingly well for $17