I'm excited to be using so many of the skills found in Jonathan Hall's book, Rapid Video for Trainers. While I am not using an iPad to shoot and edit video, the techniques are all the same. I have a One-Touch camera, which is stupid cheap. I do sometimes use Windows Live Movie Maker which is of course free. If you haven't discovered Audacity yet, check it out. Audacity is a freeware sound editing software program with tons of great features.
Jonathan's book also discusses use of angles, cuts, a bit on lighting and so much more. If you haven't purchased his book, I strongly recommend it.
The most useful tip for me is to create the story board first, rather than starting with a script and trying to fit video to the words.
My current Rapid project is my own take on Goofus and Gallant (let's see how many of you remember that one!), where I will have one supervisor doing things the right way, and another doing things the wrong way. Videos, maybe 90 seconds to illustrate the impact of doing things right. I'll post to YouTube when I'm done, probably end of April so you folks can see it. I would love to see any current Rapid Videos you are doing if you care to share links.