A nice review of the HEXBUG product line on inventorspot.com:
There is no need to worry – these bugs won’t bite. In fact, these are probably the cutest and smartest bugs you have ever seen. HEXBUG, is an intelligent little insect that comes equipped with two sensors, an object and voice sensor. When the bug bumps or touches something or hears a voice or sound, it stops or reverses direction. Besides being good looking, for a bug, the robotic insects were recipients of iParenting Media’s Best Products of 2009.