[unfamiliar]

I wouldn't argue that lack of legal protection for "slide to unlock" would stop them including it. But I would suggest that had they had absolutely no legal protection then there is a significant chance that the entire R&D project that became the iPhone wouldn't have happened. Why invest that much time and money, playing with prototypes and ideas that might never come to market, invest billions in production lines, software development and be the first in taking a bold leap into uncharted waters if you have no recourse when someone simply rips you off at the end of the day?

[thurn]

Walk into a Walmart and you can find tons of knockoff products like "Honey Nut Oatie Os". The breakfast cereal industry doesn't appear to have collapsed, though. In fact, you can buy a generic brand version of almost anything.

[twelvechairs]

Yes. It's the designers whose jobs are devalued because although they have created something of immense and enduring worth to society, their value to a (single) organization is much less.

That said it's a complex issue and patents have historically never really covered designers (look at the history of the motorcar, the plane, photography, architecture, etc.)

Also the iPhone is probably the exception - it actually did make a huge amount of money before being copied. Most design projects are far more marginal.