It's already possible to do true multicore processing in Flash Player 10 using the Pixel Bender runtime. It's a bit cumbersome because you need to write your processing kernel in the data-parallel Pixel Bender language and call it from ActionScript using the ShaderJob object.
However it's definitely worth it for any parallelizable data-crunching tasks because you get both JIT compilation and multicore support. (Flash Player 10 compiles the processing kernel to native x86 code on the fly and splits the work across up to 8 native threads, IIRC.)
However it's definitely worth it for any parallelizable data-crunching tasks because you get both JIT compilation and multicore support. (Flash Player 10 compiles the processing kernel to native x86 code on the fly and splits the work across up to 8 native threads, IIRC.)