The hottest robot from WowWee if finally shipping from Amazon.com, and they have even slashed the price by $20. Update: Pricing of the Rovio fluctuates like the Dow Jones. Now the price is $299.99 (normal price). I suggest you order right away, else Rovio is going to be out of stock, as it happened at Hammacher a couple weeks ago.
The WoWee Rovio roaming Wi-fi spy robot sells for $279.99 on Amazon.com and is in stock and shipping now.

The Rovio robot streams audio and high-resolution (640 x 480px) video in MPEG4 format, and it can take still pictures and e-mail them to you. Rovio has a two-way microphone and speaker that enables real-time interaction with subjects - for instance your cat.

The Rovio robot is also the first to feature the NorthStar smart navigation and positioning system, which represents a major breakthrough in robotics. Working like a micro-GPS system, the NorthStar system enables the Rovio robot to know where it is, locate the position of other objects, and navigate from place to place with pinpoint accuracy, entirely under its own control.
You can set the Rovio with up to 10 paths for a customized patrol; it will move along a path, detecting and avoiding obstacles with its infrared sensor, and repeat the sequence until issued new orders. The roaming robot operates for two hours from its rechargeable battery which draws power from the included recharging base.
More details on Amazon.com.