[aneesh]

Why do people think there's anything wrong here? Here's a (hypothetical) similar example:

In the 1990s, it probably look a lot of iterations, user studies, and market research to decide that copy/paste, undo, etc were the "right" set of features to include in a word processor. Do you think Google Docs re-did all that research? No, of course not. They probably just looked at Word and said, "we need to support these features". And there's nothing wrong with that. This is the exact same thing.

If you have a product out in the market, it's fair game for your competitors to look at and analyze its strengths and weaknesses, and use those to improve it's own product.

[j_baker]

There's a difference between looking at word's copy/paste and deciding you want to make your own and making your copy/paste a hack around Word's copy/paste.

[BoppreH]

I see it more as copying the toolbar item by item.