I remember all kinds of criticism of Rambus on these forums when they were abusing the legal system... not so much now that Apple is doing the same.
There's a pretty stark difference between the two cases. Rambus promised their patents to be part of a standard, but then essentially reneged on that promise. They also started patenting things that were being discussed as potential features at the consortium meetings.
Also, unlike Apple, Rambus was a hell of a lot more successful. None of Apple's patents are capable of shutting down Android, as any time Apple has won, a work around has been created in a few weeks.
I don't really understand the astonishment here. The iPhone interface was worlds ahead of the competition when it came out, why shouldn't Apple be able to protect elements of that interface?
Most of that comes down to design patents, which usually protect a very specific look. There are some technical aspects which they have been able to patent, but those aren't all that important in the scheme of things.
As I said before, there wasn't a lot of new things in iOS. Perhaps the most radical change was the elimination of the physical keyboard, which hadn't been done before. Otherwise, you can trace a lot of the concepts and ideas in iOS back several decades.
It might be interesting to see what the mobile landscape would look like if iOS never existed, but I don't think it would change much. Android would still be around, and probably be a fairly big player since their model of free-to-use would be very compelling for entry-level devices. Maybe they'd all still have physical keyboards, or perhaps Google would be iterating as aggressively, but eventually they'd probably end up where they are now, even if it was a little later.