ok I just got an email about cloud animator and it looked like something I could use for future projects. 
My question is other than having an interactive video and being Free, what's the big difference between this and CTA3??

I can definitely create a 2d animated video in CTA3 (shoot even in iclone 6 based off this Creating a Title Sequence )

So is the interactive feature the only feature that separates cloud animator from CTA3 ?