Intel's dev tools for OS X have finally hit beta. This is a very happy day.
I've said it from the beginning: Intel's development tools are the best part of Apple's decision to switch to Intel CPUs. I am genuinely psyched.
Said incredible Intel compilers for OS X are now downloadable as betas. You need to request participation in the beta and wait for an invitation response. If you get your invite, you'll get a link to register with Intel and download Intel's C++ and Fortran compilers, the Math Kernel Library and Integrated Performance Primitives.
x86 developers running Windows and Linux have been spoiled by Intel's tools for years. When I moved to the Mac, long before I knew Apple was going Intel, Intel's dev tools were chief among the very few assets it pained me to leave behind.
Professional Mac development is elevated to a whole new level.
No adjustments are necessary; Intel's tools are gcc-compatible. But instead of shooting low for compatibility's sake, as most x86 apps must, by "optimizing" for 80386, you can safely have your Mac compilers optimize for Pentium-M and leverage all of the current-generation instruction set extensions. Intel's math and performance libraries provide x86-tuned procedures for operations that need the processor's best performance but where either OS libraries are inadequate or an excess of reinvention is required.
It comes out reading like a sales pitch, but it's my experience with Intel's compilers talking, not PR from Intel or Apple. If you're a Mac developer who makes a living writing code, or you want to become one, the Intel compilers are just plain required.
The very short duration of the beta licenses suggests to me that retail availability is coming very soon, probably by spring.