But it stopped keynoting the independently produced event after 2009 , making its march announcements all the more important .
但2009年以后，苹果停止了在这个活动上进行的主题发言，此举使得3月的新品发布会变得更加重要。
They published my first book , " flying fingers , " -- you see it here -- and from there on , it 's gone to speaking at hundreds of schools , keynoting to thousands of educators , and finally , today , speaking to you .
