I love my iPhone, but I still yearn for a device that will let me take notes as fast as pen and paper. By the time a note-taking application opens, I'd already

I love my iPhone, but I still yearn for a device that will let me take notes as fast as pen and paper. By the time a note-taking application opens, I'd already have my note written down. (Application launch times already take iPhone apps out of the race.) Though that's a little orthogonal to what you might have been trying to ask.