Indeed, according to previous leaked roadmaps, Intel plans to launch a new 2.8 GHz Pentium D in July for $133. Another 3.0 GHz flavor is expected to follow at the same $133 price point in the fourth quarter, bringing the 2.8 GHz model's price down to just $113.
HKEPC thinks the rumored Socket AM2 X2 3600+ could show up in the fourth quarter, as well. The chip's price would likely be somewhere below $169, which is what AMD reportedly plans to charge for the Athlon 64 X2 3800+ after its anticipated July price cut. There's no word on specs, but HKEPC says the current OEM-only, Socket 939 version of the Athlon X2 3600+ runs at 2.0 GHz with 256 KB of cache per core.