RWT offers overview of the Cell microprocessor
The folks at Real World Technologies have just posted their overview of the Cell processor, complete with information on the die layout, some analysis of the SIMD Processing Elements, and a look at the Rambus-designed memory and I/O interfaces used by the chip. This is their take on Cell's basic philosophy:
The fundamental idea of the CELL processor project is to reverse this trend and give up the pursuit of single threaded performance, in favor of allocating additional hardware resources to perform parallel computations. That is, minimal resources are devoted toward the execution of single threaded workloads, so that multiple DSP-like processing elements can be added to perform more parallelizable multimedia-type computations.
I haven't read through it all yet, but this looks like a very nice overview of the Cell architecture and a good follow up to previous discussions
about the chip.