This is something that will instantly move the
TV up to the top spot on my 'to be purchased' list. Just having it available in web video would be enough but if third party apps have full access to it... well, suddenly things get VERY interesting. AirVideo in particular would be on app I'd love to see get this.
Looking to the future, lot of work to do still but if you can throw
any app to an
TV then what's to stop someone making an office suite that lets you chuck the document on to a screen and use the iPad as a keyboard / touchpad (or do something clever like pop a 'trail' on the display screen showing where your finger(s) are on the iPad). Remember the Motorola Atrix at CES, a phone with a docking cradle that let you connect up keyboard, mouse and monitor basically making it a phone-sized laptop complete with a more desktop-style OS? In theory at least, and there are some issues to overcome with lag and the like) Apple could provide this functionality with an
TV and bluetooth peripherals.