In 2007, Android's user interface was not anywhere near Apple's user interface. Android was busy trying to copy and take a market share away from Blackberry; because BB was the top dog at that time for phones. When the iPhone came out in 2007, it totally revolutionized the phone industry and made every phone maker, whether is was hardware or software, rethink the way phones were used. Apple could have wiped out almost every smartphone in the country, but it was restricted AT&T. So, Android took advantage of that and released a hurried, crappy user interface to get a piece of Apple's success. I remember calling Verizon about getting the iPhone and they all were instructed to say, "We have an Android phone that is just like the iPhone. It has all the same functions like making your screen larger and adding apps that you can download from the android market...etc.".
Even Google, at one point, said they wanted to follow in Apple's footsteps. They wanted to release their version of whatever Apple releases...and that's why Google TV exists.
So, yep. They are a knockoff company. The only thing they really innovated was web searching. Other than that, I haven't seen anything original come from that company.