Maybe it's more useful on a phone, which is used for contacting people and organizing things. Launch new tech where it's most compelling; people don't mind the

Maybe it's more useful on a phone, which is used for contacting people and organizing things. Launch new tech where it's most compelling; people don't mind the problems as much, and you can iterate to improve - as Apple did for the iPod. And holding it back makes it a selling point for the iPad 3.