These arguments amuse me. People seem to forget Mac pre-OSX. At the time, with the Windows 3 days, Microsoft introduced the concept of minimizing and had proper maximization/restore functions on windows. Mac had rollup and some half broken max/restore thing. At the time, whenever I used Macs (and I still loved them at the time) I found myself looking for minimize. Window management then was horrible. But when OSX came out with the doc, it clearly borrowed ideas from Win 95. The minimize, max/restore, close buttons matched the Windows equivalents, and you could minimize to the dock, finally! For us used to Windows, this was a godsend, finally they implemented this too! It made Macs more pleasant to use. Composite desktops did come first in Linux/Mac, but like the GUI, I consider that an eventual technological advancement anyway, so claiming anyone owns that is silly.