Conroe : 2.93GHz to start with...

According to X86secret, the Conroe, the processor which should replace the current Pentium4D, should be clocked at 2.93GHz at the beginning.
The Conroe will be proportionally clocked slower than the current Pentium4, but its architecture is based on Pentium-m, and it will be a dual core design with 2 or 4MB of L2 cache shared between both cores.
The Conroe should be available at the same time that Apple is expecting to add Intel processor into some of its desktop computer models.