A forum member over at ZOL, somehow, managed to lay his hands on a bulldozer based processor and a llano based one. He took some pictures of the two processors.
bulldozer:
bulldozer(pins): the bulldozer processor in the picture has 940 pins. It has two pins more than a socket AM3 processor does.
Llano APU:
Llano APU(pins): the llano processor has 940 pins as well, but the layout of the pins is a far cry from the bulldozer's.
According to the poster, the socket perparing for Llano is called Socket FM1.
He also took a screenshot of CPU-z, but the software wasn't able to identify the Llano processor properly:
http://news.mydrivers.com/1/190/190468.htm