It's called the Pleo Reborn (or "RB" for short) and the primary features are these: a lithium-polymer battery good for two hours of continuous use, a much tougher hide, and an RFID "sense of smell" that lets it interact with a variety of optional accessories to "eat, " take medicine for virtual injuries and learn new tricks as you go.
ENGADGET: Pleo Reborn detailed by Innvo CEO, one lucky fan finds and buys the tiny dino (video)