I have been playing with the madefire motion book tool to get a feel of its controls. It is pretty simple and I'm thinking of using it for making my MLC and Eva & Lumina comics. They will be one panel per page to get that comic strip look. However I can add effects to speech bubbles and additional imagery. If anyone has an iPad or iPhone can be able to read the motion books. Anyway, I'm looking forward to doing this on my free time.
Edit: Here's a preview of the MLC comic. It's not much, but I'm just getting the handle on this motion book tool!