AMD's focus on the mainstream echoes to a certain extent its GPU strategy: focus on the bulk of the customers first, then address the smaller high end of the market. Despite an overly controlling stance on overclocking and issues with B2 stepping 6-series chipsets, Intel's Sandy Bridge (Core ix-2xxx) dominates the high end. AMD will make a go for that market later this year with its Bulldozer architecture. It's still too early for an accurate preview of Bulldozer performance, although the time for such a thing is quickly approaching.
Until Bulldozer's unveiling, the Phenom II remains as AMD's high end platform. Today, that very platform gets a little boost.