MegaPhone 1.1.1 works Just fine

The older versions did not work properly on some iphones. Version 1.1.1 works just fine with OS 3.0.
Lots of fun if you want to play Karoke etc, as well as useful for speech etc as long as you have long mini jack cable with you.
Hey! for a free app it does more than one expects.....
If you want a perfection then should get professional equipment for thousands of $$$$$
Good Work Smudge guys. Thanks

Big GABIG about Megaphone: Voice Amplifier