Anyone that is posting the typical "tired of all these lawsuits" should understand that these are the same lawsuits we've been hearing about for years, just added to.
As Cook put it, product cycles are much faster than the legal system.
Also, not that I think the current system makes any sense at all, but because these lawsuits live within that system it's hard to argue that Samsung didn't try to copy the iphone's interface as much as possible:
http://www.theverge.com/2012/8/8/3227289/samsung-apple-ux-ui-interface-improvement
Download the whole 132 page document (it's an internal Samsung document) that literally goes feature for feature comparing their Vibrant to an older iphone with notes as to how to emulate the experience as much as possible.
Again though, I personally feel technology patents should only have a shelf life of 5 years max given the pace of advancement. The current scheme truly stifles bringing innovation to the masses.