Not really dying, OpenSolaris is actually creating quite a vibrant community, FreeBSD and Mac OS X also have quite strong followings.
CannotResolveSymbol wrote:Probably because proprietary Unix is dying, being replaced with Linux and Windows Server machines. Proprietary Unix is not a good investment right now: Linux and Windows Server have become strong enough competitors that people are moving away from those
But proprietary Unixes (OpenSolaris, FreeBSD, and Darwin are all open source) are dying out. SCO Unix is a proprietary, closed system.