World Tech Update #111, April 15, 2010 On World Tech Update this week Microsoft introduces its Kin mobile phones, Apple updates its MacBook Pro laptops, but pushes back the international launch of the iPad, Intel executives give lukewarm predictions for tablets, Twitter introduces an ad service called Promoted Tweets, Skinput makes the entire body a touch interface, Multitoe makes the floor interactive and Simon the robot can be taught new tasks.