Konfabulator comes to mind: http://arstechnica.com/apple/reviews/2005/04/macosx-10-4.ars...
Ignoring the original Mac OS (and all the OS version up to 9) is the only way to say they ripped off Konfabulator. Desk Accessories finally make an appearance in OS X after missing since OS 9 and it is a ripoff of Konfabulator?
[edit upon downvote: I don't mean it shouldn't happen, I just thought it was funny to suddenly be transported back to that time; hadn't even thought of the app nor the arguments around it in years.]
I could be in a bad mood just because this foolish policy probably destroyed any hope of micro-payments on iOS devices.