With such criteria, I contend that anyone versed in the art would've come up with a very similar looking simple slide unlocker.
It's so damned obvious, that even alien Predators do a horizontal left-to-right slide-to-unlock motion on their wrist computers before clicking other buttons to start the self-destruct sequence
I yield to your superior knowledge, but "obviousness" in the colloquial sense is not the test. The test is defined in 35 USC 103, but the case law has rendered it so that to show obviousness you essentially have to show that you can combine one or more prior art references to reach the result.
In other words, if I had one reference that talks about using gestures (the type of gesture in the patent - not the type of gestures others have talked about) to unlock something, and another that says visual feedback is good, and you can show that a person having ordinary (not exceptional) skill in the art would find it obvious to combine those references to solve a problem, you can make a case for obviousness.
It is quite likely that one could find such references, and a little less likely that one can prove you would combine them (each side will have an expert witness supporting their story).
But Apple has the trump card - the secondary indications of non-obviousness.
These are:
- commercial success;
- long-felt but unsolved needs
- failure of others
- skepticism or disbelief before the invention
- copying, praise, unexpected results, and industry acceptance
The idea is that it's all well and good to say that theoretically someone would combine these references, but if it was so "obvious" to do so, how come no one did, and how come once the inventor did he achieved such success? If everyone knew they would achieve such success by doing it, why didn't they do it? It must be that combining those things either was not obvious to try, or that combining them resulted in a surprising unanticipated result.
Here, Apple clearly has the following going for them: commercial success, failure of others, copying, praise, industry acceptance. They can probably make a case for long-felt unsolved need and skeptism, too.
I almost always take the side of the defense in patent matters, and I can tell you I would love it if my clients always had a case as good as Apple's.
ps: did the Predators really do that? That would be very good art if it was to unlock a screen.