[jlees]

To play Devil's Advocate, why would Google want you to create stuff that works across browsers? They have their own browser and are creating an operating system based on that browser. It's in their interests to reward you to develop on Chrome, in the hopes of causing a similar app-driven fanboy rush for Chrome OS.

[ryanhuff]

Because Google makes money on browsing, not selling web browsers. The faster and more functional everybody's websites are with all browsers, the more page views result, and the more money Google ultimately makes. Its in Google's best interest that all browsers can navigate the web effectively.