Well, I'm finally back. And without any new information to boot. As far as Ive looked, there still isn't any easy way, or practical way to make enhanced e-books yet. So I'm dropping it for now - at least until there's an e-reader app for a PC that can display the audio video/enhanced e-books.
If you're an Indie Author, it seems that the fastest and easiest ways to come up with enhanced e-books are still Apple iBooks or Vook books. Then you're stuck having to test them out on your device - something with an iOS (iPads etc.), Android or Nook. Kindles and PCs just aren't ready.
Both appear to be fairly straightforward to make your audio/video enhanced e-books - just so long as you have the device to test them on. We'll just have to wait a little longer to make sample epub3s that everyone can see. iBooks Author is free for making your enhanced book but Vook starts at 9.99 a month to use (although you get to keep 100% of the royalties from the enhanced e-books you sell).
So here are the links:
http://www.apple.com/ibooks-author/
http://vook.com/
Now that I've decided to shelf the topic for now, we can move on to other gimmicky things that could help us sell our books.. Have a great week everyone!