Windows Vista Vista is not a copy of OS X. The search box is in the completely opposite corner (bottom left opposed to top right), gadgets not widgets, and the 3D chess games in Vista has porcelain as a board type (innovative).
Vista Wins on Looks. As for Lacks ... suggests that the copying wasn't quite perfect, "And then there’s that Sidebar, the floating layer of mini-programs. If you close one of the gadgets, you lose its contents forever: your notes in the Post-it Notes gadget, your stock portfolio in the Stocks gadget, and so on. You couldn’t save them if you wanted to. How could Microsoft have missed that one."