The argument that Linux needs to add functionality to become competetive with Microsoft becomes irrelevant as Linux gets more and more functionality where Windows does not follow.

Support for 64 bit is one, GRID support is another. When companies realise they can have all these desktops (running Linux) and use them for processing data as well, spending money on great desktop hardware is less an issue as it pays not only in great interactive performance but also in added infrastructure processing (both 64 bit AND Grid AND the 2.6 kernel will make Linux ZOOM)

Remember, SUSE includes GRID support already for several releases of its distribution! The Linux 2.6 kernel release will propably be out there before Windows 2003.

For programmers programming for GRID there are resources on "how to" at IBM's developpers network. (basic knowledge is knowing to program JAVA..)
Thanks,
Gerard