Julia Lerman takes a look at the "holy grail/killer app" myth for the Tablet PC.
Not that anyone has been arguing with me, but I seem to just not believe in the killer app for the mass market that will make everyone jump to tablets. I think the evolution of computers to a point where the additional mobility features such as ink and speech are not "additional" but just there is how you will get the world using ink.
Can't say I disagree. Check out her full post here.