If you like the way OS-X looks and functions relax and enjoy it. Why the high-blood pressure musings of how MS Vista is doing this and copying that from OS-X? It's not impinging on your personal character or pocketbook is it? Let Microsoft copy away - OS-X still has the strength of underlying Unix, a huge advantage. So smile and be happy! I am a Windows user but not a very devoted one. Actually looking seriously at an Intel-Mac machine in late 2006 - but sorry, my whole life doesn't hang in the balance because of it.
Vista=Copy of OS X