Slide-to-unlock doesn't seem like it is a fundamental requirement of modern phones, surely there are a lot of good alternatives. That makes it look a lot more like it was copied to make devices seem more iPhone line.
Customizable user pages, and activity streams are a lot harder to work around for modern web applications. The fact that there aren't a lot of alternatives also suggests that they are obvious technologies. If Yahoo really owns those things, how many modern web applications are not vulnerable.
It's true that 'slide to unlock' seems like a superficial feature, but that's actually a point in Apples's favor.
By pursuing superficial claims, they aren't trying to blow the competition out of the water by claiming ownership of fundamental ideas - they're just trying to stop them making products that feel like imitations of their brand.
If startups / entrepreneurs who claim to be innovative would work with the patent landscape, rather than irrationally fearing and hating it, they would find that a huge patent portfolio or broad patent like those Yahoo owns are really just big houses of cards. A true innovator can topple it readily just using innovation; and then, voila, those innovations are now patentable.
I am reminded of star wars in this case: The more you tighten your grip, Admiral Tarkin, the more systems will slip through your fingers.
Don't try to justify it, Apple has not ideals any more. I admired Jobs of what he did as a person, improving the state of the Technology for everyone. There wouldn't have been a real mobile world (including Android and WP7) like we have today.
I don't see any more what Apple's major goal is. if they would hold to their premise: "Create the best user experience" they wouldn't do stuff like that.
I'm not trying it justify it, but neither to I think inaccurate bashing is helpful.
They are being sued too (and were sued first by Nokia) in this dirty patent war. I think it's naive to expect them to simply ignore all that.
It is possible for them to both try to build the best products for the consumer, and simultaneously act like a business operating in a tough environment.