How to Put Videos into IPhone / IPod?

iTransPod is a perfect companion for iTunes. It lets you import movies, clips, music videos to your iPhone, iPod Classic, Nano & Touch. This plug-in appears inside iTunes and is extremely simple to use (Watch demo!). It can understand even the most cryptic video formats and codecs around (AVM, ASF, WMV, AVS, FLV, MKV, MOV, AVI, 3GP, M4V, MP4, MPG, MPEG, DAT, OGM, VOB, RM, RMVB, TS, TP, IFO, NSV).