The Brazos platform will be similar to Intel's Centrino as it is defined by what is inside the mobile computer as opposed to being a distinct part.  In this case we see a Zacate or Ontario
APU and the Hudson I/O chip inside any and all Brazos PCs.  The two APUs have consolidated a GPU component with video decoding logic, a single-channel DDR3 memory controller, and a controller for PCI Express lanes and display outputs along with two Bobcat cores, all hiding inside the 75mm² die. 

Check out the details at The Tech Report.

"Last week, I flew down to AMD's Austin campus for enchiladas and some hands-on time with the Brazos

platform, which will hit ultraportables, netbooks, and nettops in early 2011."

Here are some more Processor articles from around the web:

  Processors

• AMD Llano APU mass

  production reportedly delays to 2H11 @ DigiTimes

• AMD Vision - The $399 Brazos

  Notebook Platform Preview @ Legit Reviews

• Previewing AMD's Brazos, Part 1: More Details on Zacate/Ontario

  and Fusion @ AnandTech

• AMD prepares

  new x6 Phenoms @ eTeknix