NPR and Sports illustrated web apps were demonstrated. Both feature a very dynamic and fluid user interface, watch the demo video of the "Snap Shot" app by Sports Illustrated. The New York Times team showed their web app. It's very interactive and lets users choose whichever news they want to browse. It's works offline too.
Electronic Arts showed Poppit! a casual game that be integrated in the next release of Google Chrome. EA said that it has ported the game to the browser in 48 hours. It's faster (than Flash) and the graphics are more fluid. It also uses a superior resolution.
Amazon demonstrates Amazon Window Shop, their shopping web app. It's clear that it looks much better than their (aging) website, but you baically find everything that you have grown accustomed to on amazon.com: products, photos, reviews, specs.