According to Steven Levy's In the Plex, a book about life at Apple, Steve Jobs was infuriated by the similarities between Android and iOS. He was so peeved, in fact, that he kept the original iPad's development a secret from Schmidt. And that's no small task, considering the scale of the iPad's development and launch.
The rapidly intensifying competition between Apple and Google drove Schmidt to resign from Apple's board of directors in August, 2009. And a short 6 months later, we had the original iPad.
Nilay Patel, a former Engadget editor, believes that Android's timeline is more complicated than it seems. When the T-Mobile G1 shipped in September, 2008, pinch to zoom wasn't available. And the HTC Nexus One didn't acquire the feature until February, 2010. But individual OEMs added the feature separately.
Patel believes that Apple may have threatened Google with a lawsuit over the multi-touch and pinch to zoom features, forcing them to remove them from the initial Android builds. If we had to guess, we would say that Eric Schmidt wanted to wait a while after his departure from Apple's board, to decrease the appearance that he was gleaning trade secrets from his time with Apple.
source: Business Insider via IntoMobile