This has to be due to the fact that Google didn't do/have any sort of marketing. Every other phone had a carrier behind it as well. It's an apples to oranges comparison! The iPhone 3GS had two previous iPhones to pave it's way, the Droid had all kinds of viral marketing going for it from Verizon, the MyTouch had a lot of marketing from T-Mobile with stars like Whoopie Goldberg and Chevy Chase. The only thing that Google had behind it was geeks like us who read HN and blogs like Engadget.