I'm not sure Apple's a great example. They keep their ideas secret for marketing reasons: they get immense amounts of free advertising by being dramatic about new product launches. And because they burnish their brand by maximizing their number of public hit products. (They also keep some details of incremental improvements secret because it's a highly competitive market, but that's different than stealing ideas for new products.)

In fact, I'm having trouble thinking of a "big new idea" product they did recently. They were years late to the MP3 player and smartphone markets, for example.

Since the idea's out, would you mind saying more about the idea that was stolen?