Tom Igoe has a great summary of CES here.
These cars have 6 sensors in the front and in the back that aid with steering so they can park themselves!
An assortment of products using Zigbee.
My favorite find at this booth is this light switch: it harvests enough energy from the motion of the switch to send the signal to the receiver with no internal battery whatsoever!
This tiny robot is for play & hacking.