Toyota Creations is taking pre-orders for their YetYet (iPad) and YetX (iPhone) plush toys. In the below video, you can see some of the crazy interactive elements that you (or your children) can take advantage of. It's like having an interactive plush friend (you'll have to download the app via iTunes though).
Pick one up now as they'll begin shipping in February 2012. The YetYet sells for $79.90, while the YetX goes for $49.90.