1)   Wondershare PPT to iPod 4.7.0
Wondershare PPT to iPod is a professional PowerPoint to iPod video converter. It can convert PowerPoint presentations to iPod MP4 video formats with the best quality

 2)   PPTmovie 2.0
PPTmovie 2.0 supports all major formats: PPT to AVI, MPEG-1, MPEG-2, MP4 what gives you plenty of options on how to use your videos: publish online with AVI, play back on a DVD player with MPEG-2, watch on iPod and watch it on the go with MP4

 3)   PPTexpert MP4 Converter 1.0
PPTexpert MP4 Converter transforms your PowerPoint PPT presentation to MP4 video format. Get your presentation on iPhone, iPod, PSP, Pocket PC, Smartphone or another portable device or mobile phone and rehearse it on the go with MP4 support.