If you listen to him explain his vision for the future of technology, it sounds quite sweeping:
"There's the perception that the Internet is done in terms of innovation. . . . We're still at the very beginning in terms of human-computer interaction models in terms of opportunities. . . . People today sit in front of a computer typing on an absolutely bizarre keyboard layout that was traditionally designed to prevent people from typing too quickly, so they wouldn't jam the typewriter. We use a device that causes repetitive stress syndrome called the mouse."
Excellent points; some of the most important technological challenges involve the basics.
Eric Austin Litman's Weblog