justnear.me allows you to share notes and meet new people around you using time and location-sensitive QR codes that can be quickly generated for events on the fly.
What a horrible idea. What happened to thinking about international users, for whom typing is a hassle? Learn from Japan, where Yahoo is more preferable over Google because you can find what you want rather than type it out...
The average salary of a professor at Stanford is $148,000. I think it's unfortunate that he had to step away from the possibility of influencing those who do make it to Stanford in favor of catering to the world. It's great that he does so, but there's also plenty of reasons why he would be affecting many different minds at Stanford.