Yeah, it's... not exactly new technology, but it's still neat. If you still have a place in your heart for virtual pets and Dragon Quest, you can import this neat little Slime pedometer toy. It keeps track of how much you walk, and how much you walk affects the Slime's growth, and then you can use that growth to unlock more games to play with it.
So yeah, it's basically a Tomogatchi but with a Slime in it. Still neat though.
You can pre-order it from AmiAmi.jp here for 2,200 Yen, or about $29. It's pretty pricey considering what you're getting, but at the very least it's an interesting novelty piece.