1)   Ultra Mobile 3GP Video Converter 3.9.0306
Ultra Mobile 3GP Video Converter is a powerful 3GP converter which can convert almost all popular video formats to 3GP/3G2/MP4 video clips and play them in mobile phone or other software 3GP player.
AVI to 3GP, MPEG to 3GP, MOV to 3GP, 3GP Converter, 3G2 Converter, Mobile 3GP, 3GP Video, h263, 3gp, 3g2,

 2)   All Video to 3GP Converter 1.3
All Video to 3GP Converter is a small and effective solution for video file conversion. It support videos conversion from AVI, WMV, MPEG, MP4, PSP, FLV, RMVB, SWF, Quick Time to 3GP/3G2/MP4 video clips fast and easily.
AVI to 3GP, MPEG to 3GP, WMV to 3GP, RM to 3GP, FLV to 3GP, MOV to 3GP, 3GP Converter, 3G2 Converter, Mobile 3GP, 3GP Video,

 3)   3gpMobile 1.4.2
3gpMobile is a powerful tool to convert various video formats to 3gp or 3gp2 for your cellular, pda or other mobile device. It supports video formats such as avi, mpeg, wmv. By using 3gp Mobile you can simply and fast convert your video files
video to 3gp, avi to 3gp, wmv to 3gp, mpeg to 3gp, mov to 3gp, video to mobile, 3gp, 3gp2, cellular pda, mobile 3gp,