DARBES, isn't mobile A64 the high-end Centrino answer? Pentium-M is a very nice design which seems to span the notebook offerings from high end through thin & light. AMD does not have a single answer to it. If mobile A64 makes a better high end answer, and Geode makes a better thin & light answer, that's not bad!
Now, Centrino is a marketing campaign. AMD mobile Athlons competed in the desktop replacement market paired with 802.11G at a significantly lower price point than Centrino (with an inferior 802.11B until recently).
So the one area where AMD does not compete well is a flashy name for the bundle (even a bundle using 3rd party WiFi) & a marketing campaign behind it.