It's not the method that Apple acquired the GUI and mouse that annoys people, it's Oh-So-Self-Fucking-Righteousness of Apple afterwards when Microsoft used it as well.
"Hey, you can't copy our GUI and mouse!"
"Who's?" Certainly not Apple
For the iphone... keep in mind Cisco was NOT selling a device called the iphone. They bought up a company that sold a product called the iphone. It sold in very limited quantities. When Cisco bought infogear in 2000 they cancelled the product (years earlier to Apples iphone). They did not sell an iphone since 2000. Keep in mind, trademarks (unlike copyrights or other protections) only apply when you are actively using them. Cisco never marketed an iphone. The company that did no longer existed and hadn't been selling it for a while. Apple looked at the law, realized they could use the iPhone name anyway but tried to do the right thing. Apple first approached Cisco and wanted to buy the name. Cisco wanted an ungodly sum of money and the two sides couldn't reach an agreement. So Apple went ahead and used the name. After Apple announced thier decision, Cisco then slapped the iPhone name on a Linksys phone product in 2006 after Apple already had the iphone ready. The name only appeared on their website. The product packaging and marketing materials for the Cisco/Linksys product NEVER mentioned iPhone, not once. It was just Cisco trying to preserve the trademark (after not using it for *6* years) but it was too late. I don't know, you seem to hate Apple, but from my perspective it looks like Cisco, not Apple, was the greedy one trying to cash in here.
As for your assertion that Apple sued and said "you can't copy out GUI and mouse", that is really simplifying a complex issue to try to make your argument hold water. Sure, Xerox had the first GUI. Have you ever seen it demoed? (Try looking at a youtube video of it, then look at a you tube video of the original mac demo). Sure, they both use Mice, have a graphical interface, and use the concept of windows to display data. However the implementations of these ideas are very different. Xerox had 3 button mice and menus that popped up when you clicked (sort of like a right click contextual menu today). Apple refined that down to a single button mouse and a fixed menubar across the top. They also had the same command with the same key combos in every app. They standardized how each program would behave. All the apps have a File Menu, then an Edit menu, etc. They really laid out file navaigation with a grpahical folders concept. All of these things were different then the Xerox interface. The experience of using the two was completely different. Now when windows came along, they used the same interface ideas Apple created. they had the same File... Edit.. menus. They also fixed the menus in a bar at the top of a window in the same layout as the mac. what Apple sued for was not "hey you have a mouse and a gui and we want it back", they were suing because Microsoft duplicated the experience and interfaced standards they had developed. Sure the underlying ideas of the GUI are the same across all three systems but the Windows implementation very much mimiced the Mac experience whereas Apple did not go and just redo the Xerox interface as it existed.
Besides when Apple got to court, they found that due to some licensing deals they had done with Microsoft to preserve Basic on the Apple II, they had inadvertently given away to rights to MS anyway. Plus the judge found you can't copyright, patent, or trademark an "experience" so I don't know why you're all bent out of shape about this anyway.