as asked about to answer the question no this is not a small upgrade
like with windows. its the next generation of the mac-os with all the
new versions of prior software, new features, new software for the
os. the cost will most likly be $130 for leopard mac osx 10.5
the little we do know that Apple has leaked out is there will be new
better sounding tts voices and better voice over controls and added
access features to voice over.
