My email to Microsoft:
Office web apps are a great start.
While I am a digital native do believe there is a place for paper in this world today. The computer has the master copy but I still want to print it out, write on it, take it places offline, etc.
Most of the time I’d be using my smart client OneNote app to build my notebooks and the web as a “access from anywhere tool”, more readonly and using it not so much deep editing.
Under those terms it would be beneficial to add printing to the web app.