VCD to PDA Maker is a video convert tool for playback on 3GP.
SWF MPEG4 Manager can convert almost all popular video formats, e.g.
Xvid Mobile Edit convert most of video between almost any formats.
RM MPG Ultra includes all functions of Aglare video conversion series.
VOB QuickTime Guide convert most of video between almost any formats.
WMV MOV Suite convert most of video between almost any formats.