While certainly not a necessity, the $499 Evolution Robotics ER1 might just find its way onto my Christmas list. This robot harnesses the power of your laptop for its brain. It’s possible to train it to respond to your voice and execute increasingly complex commands.
So, with the addition of the gripper module, one could train their laptop to get up, go to the fridge, retrieve a beer, and bring it back to you. Now that’s progress.