Just so that I'm clear on the wording:
Multicore: Today's dual and quad cores.
Manycore: many, many more cores per die [like Intel's recent prototype]

I think the distinction is more than just cores-per-die,
but rather that VFB's authors coin manycore as the approach
which embraces all their hot-buttons (low-power, fairly dumb cores,
lots of them, no coherency among them, some kind of virtualization,
thin OS's, autotuning, etc.)

If that is true, where does the Cell BE fit? Multi or Many?

cell-BE is a PPC with some attached processors. it's not that much different from a cpu+gpu (not surprising, considering its market.)
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