Perhaps everyone does do it. From a legal point of view I have no clue what I'm talking about BUT, as a layman, looking through that document, it's so abundantly clear that Samsung have focused on ONE competitor ...
Corporations do internal comparisons with competing products all the time to see how they might improve their own product. Doesn't matter if the product is hamburgers, or carrier phone plans, or smartphones.
Heck, often corporations go even further and will do comparisons against what they THINK their competitors will do. A good example is when Apple commissioned a designer to create a mockup of what he thought a Sony design would be like. (He did well. It definitely had a Sony look to it.) Then they used some of the ideas from it. It's all normal behavior.
@craznar, then why before the iPhone all phones has a keyboard?
What? No, they didn't all have keyboards before the iPhone.
At the time there were two types of smartphones: touch and not. Obviously the non-touch had keyboards.
The touch types had touch stylus keyboards and sometimes a physical keyboard. Physical keyboards were actually a latecomer to PDAs and smartphones, being seen as a luxury feature on top models at first.
Apple's tremendous advantage was that its business model was entirely different than the competition, and there was great risk when Apple entered the market. Apple's advantage was that the carriers weren't going to get to mess with the phone. Even Samsung has learned this.
Apple had no great risk. They'd already looked bad with the ill-fated ROKR collaboration. It'd be hard to go downhill from there
What was different about their initial business model was that they didn't allow carrier logos and they didn't allow customer subsidies (which later changed).
AT&T saw no problem with those ideas, since they were able to wrangle a ridiculously long exclusivity in return.
As for iOS calcification, I'm not seeing that this is hindering iPhone acceptance, and legacy support is still longer than anyone else in the industry.
Windows Mobile, Symbian and others had far longer legacy support. That's the whole problem. Sometimes you have to throw everything away, like MS just did with their Windows Phone rewrite (again).
Three years from now, we will be hearing of a complete rewrite of iOS, and 5 years from now, we will be seeing it. That is the way Apple works.
You really think so? It's true that Apple has traditionally been willing to toss things aside (PowerPC comes to mind), but I think in this case they're pretty locked in. I'm open to debate on it, of course!