Server-side, it's a whole other dogfight. *nix has the majority there, market-wide. Windows Server (NT, 2k, 2k3) has roughly 30% split and shrinking (...and IMHO they're mostly small business rigs w/ little to no full-time dedicated IT)... ...and among the smallest slivers of market shares, there is X-Serve (Apple's OSX-based server). The reason Apple doesn't fare well in the server market is because it is rather redundant: OSX and X-Serve have a BSD *nix core... and there are already a huge number of *nix and BSD-based servers out there which are proven at the enterprise-level. /P