[j_baker]

You could come up with a similar list for just about any big corporation. A few of these really don't prove your point though, because you're comparing them to services that are also copies of something else.

iPad = Nokia N800 Facebook = Myspace, Friendster IE/Firefox = Mosaic MS Office = Lotus

I suspect that if we really put time into this, we could come up with examples of things the others might be considered copies of. Good artists copy, great artists steal.