Even though I don't ever use power point.. I'm going to have to say after much Googling that PowerPoint Mobile won't do that. The reason I say that is because I can't find any record of PowerPoint Mobile playing a video within a presentation... and all I can find on Google is Software to Convert PPT files to WMV for your mobile.. specifically citing that your Movies, sound, and animations will be retained this way! A Company at
http://www.ppt-to-dvd.com/powerpoint...-overview.html
is one such vendor of such software.
Hard for me to believe they(and many others) could sell software like this if Video's were natively supported in PPT Mobile.
Later,
phaZed