ezmediaconverter.com
All in one audio, video file converter. Can convert 3GP and 3G2 extensions.
EZ Media Converter can convert almost all video formats including 3GP, 3G2, iPOD MP4, DivX, XviD, MOV, MPEG, VOB, DVD, WMV, AVI to MPEG-I, MPEG-I, MPEG-2,MPEG-4, Flash for Video