"A grid of icons isn't exactly new. Palm did it before Apple. Windows 3.11 before Palm."
Apple's Newton OS came three years before Palm's Pilot. Apple's Mac System came 8 years before Windows 3.11. They all used grids of icons, it's part of the desktop metaphor. If that were the only thing Samsung copied, I doubt they would be getting sued now.
A grid of icons isn't exactly new. Palm did it before Apple. Windows 3.11 before Palm.