There's not that many brands that sell AMD equiped notebooks. Off the top of my head Acer, and HP/Compaq are the only large companies (Sony had a few models, as did Toshiba but they've largely left the AMD behind).
Intel has much better mobile offerings currently, this may change with Turion.
Edit: Fujitsu also has a single AMD XP-M model, the S2010. (I have an older Lifebook S and they are great notebooks, not very fast, but great size and portability.
