PowerPC for the XBox 360 : ready on time, available in volume

Usually the design of such processor will require between 30 and 36 months, for IBM it took only 24 months to provide Microsoft with a final design. This gain of time on the development schedule will allow Microsoft to release its next generation game console before competitors on November 22nd in USA and beginning December in Europe.
But an interesting question is : how is it possible that IBM can design a triple-core 3.2GHz processor for Microsoft, but struggles to deliver a PPC970MP faster than 2.5 GHz to Apple?
Of course, those processors are not designed for the same tasks and purpose; but this also made possible by multiplying the number of manufacturers! IBM will be supported for Xbox360 processor production by Chartered Semiconductor.
In addition, if Bill Gates has asked IBM to perform the design of the processor, Microsoft remains the only owner of the design; so they can ask to any other processor founders to prepare such processor for them, if Xbox360 sales make it necessary…
Three Chinese companies are manufacturing the other parts of the Xbox360.
The big Xbox360 manufacturing and marketing machine is now in action, and its only goal is provide enough Xbox360 consoles for all customers.