Converting AVI to 3gp is always crucial for low-end mobile phone owners. With "AVI to 3GP 1.4" you can convert all of your AVI videos to the most usable 3GP format. And the best of all, its free.
"AVI to 3GP 1.4" offers a very simplest user interface, avoiding the feeling known as "getting used to".
Conversion with this software is just a matter of three step ( or two if you don't want to change the video scaling).