Parrot's AR.Drone quadrotor helicopter is a $300 robot "toy" with integrated camera(s). It connects to an iPhone or iPad over WiFi and creates an augmented reality (AR) display over-top the video, upon which interesting games can be designed. Check out the photos and videos below.
Orbotix unveiled its "ball robot" named Sphero at CES 2011, where it was a finalist for "Best in Show." The hardware seems pretty similar to other spherical robots that have been created over the years (eg Solarbotics miniballs, that I remember building over a decade ago). However, having the brains and controls on a remote smart phone is fantastic. Just imagine all the fun mini-games that can be created -- it's like a real-life version of Super Monkey Ball! Even with just teleoperation, I think Sphero would make a fantastic pet (cat or dog) toy, so I'm sure we'll eventually end up purchasing one. Photo credits to OhGizmo.
Of course, I'm pretty sure Matt is a programming ninja, so your mileage may vary. However, it's still pretty encouraging -- the Scribbler is meant to be an educational platform for highschoolers and undergrads, so the technology to build these sorts of robots should be pretty attainable.
Naturally, plenty of other robots will eventually leverage the ubiquity of smart phones and tablets -- for example, we've already seen an iPad being used on iRobot's AVA telepresence robot prototype. However, it looks like the robot toy industry is (once again) the first to take up the trend.