To promote the upcoming Muppets movie, the social video service Viddy will help you digitally add a Kermit, Miss Piggy, Fozzie or Gonzo into your next book video. You can see other Muppet-inspired videos at this link.
iPhone and iPad 2 owners can use the free app to record brief videos. Combining the quick information delivery of Twitter with the creative network of Instagram, Viddy gives users 15-seconds to record a video and share it with other friends on the video app’s social network..
Here’s more about the service: “Featuring some of the beloved Muppets brought to life in 15-second video clips, the Muppet Pack offers fans a unique opportunity to create personalized interactive video clips with their favorite characters. Available via the iPhone Viddy app, the easy to use one-click effects and soundtrack give fans the opportunity to interact with the Muppets on film and get creative with producing their own video content.”

As you can see by the video embedded above, this GalleyCat editor used Viddy to make a 15-second video about a vintage book by a garbageman poet.
If you want to learn more about other tools for smartphones and tablets, check out Mediabistro’s upcoming Publishing App Expo on December 7-8. Speakers include author John Green and executives from Barnes & Noble, Disney, Zinio and ComiXology.