I'm not quite sure what your point is - certainly Samsung was making laptops with the same black design theme prior to the iPad's release. I very much doubt they changed their whole line of laptops to look like the iPad.
"certainly Samsung was making laptops with the same black design theme prior to the iPad's release"
As was Apple, hence my earlier comment. Samsung hasn't just ripped off Apple's iPad design, it's been ripping off Apple's designs for years. From the MacBook Air to the iPhone to the iPod Touch, Samsung has been making faithful copies.
