The patent that triggered the ban dates back to 2004. At that time having a unified search of multiple data sources/bases was indeed unique. That is why the patent was given. Today this is nothing new, but back then it was innovative, hence the patent.
United States Patent: 8086604
Some of you are judging these patents by today's standards. Judge them by the time they were issued. Back then they were innovative.
Apple patented the hell out of the original iphone before it released it. I still have a CR magazine that dates back to January 2008. I looked at all the phones that the magazines tested and none of them had the look and the touch interface that the original iphone had. All of the phones were flip/slider phones or keyboard candy bar style phones. Today, all phones look and feel like the iphone only larger. Look up that magazine and tell me if any phone listed looked or felt like the iphone.