Windows and Linux Not Well Prepared For Multicore Chips
 

For systems going beyond quad-core chips, the performance may actually drop beyond quad-core chips. Why? Windows and Linux aren't designed for PCs beyond quad-core chips, and programmers are to blame for that. Developers still write programs for single-core chips and need the tools necessary to break up tasks over multiple cores. Problem? The development tools aren't available and research is only starting

http://www.infoworld.com/article/09/...ust ry_1.html