I'm going to reserve judgement until the exact text of the e-mail is published. He can't remember what he wrote? BS. There will be a copy in his Sent E-mail folder. I'm guessing he did a lot more than call the POS a bad name. He probably included some threats, veiled or not, and that is the real reason he was paid a visit and banned from entering the country. But until we know what the e-mail says, we can't tell if the reaction was proportionate to the action. Basically, it's a chance for political bashing. Worthless journalism.
He wouldn't have a copy if he used http://www.whitehouse.gov/contact to send the email.
From the demo, Google TV requires some sort of keyboard/mouse interface. From the FAQ, it doesn't appear that it will be a standard Bluetooth one. Other the other end, Apple has a simplified remote but will allow for control through one of the iOS devices. I think where the battle will be won is how consumers will like the UI.
At the demo in Berlin they said there will be both Android and iOS apps for controlling Google TV. They even mentioned voice search integration.
An authority is a person who can tell you more about something than you really care to know.