MobilePro has completed the design of its first ZigBee wireless semiconductor chip. The chip design for the so-called "RF layer," or "physical layer," is now being converted into a prototype chip at a facility in Taiwan. The first design is a 2.4 GHz ZigBee chip. MobilePro said it already has a second 900 MHz ZigBee chip on the drawing board. http://www.mobileprocorp.com/