Why Google Open Sources its Gadgets

From the horse's mouth:

# Source code can be a valuable learning tool. The gadgets not only show you how to develop Desktop gadgets, integrate with Google APIs, but also provide other tidbits of knowledge such as how to calculate phases of the moon or StarDates.

# The images and graphics are also Open Sourced. Being an engineer, I know how frustrating it is to work hard on an application only to have it dismissed because of hand-drawn stick figures and shapes. We hope people can take advantage of our graphic designers' talents. If you're a fan of clocks, I have something right up your alley.

# We get warm fuzzy feelings by simply supporting the cause. It fosters a spirit of openness and collaboration between the team and developer community.

They even conclude:

To summarize, I'd encourage community members to consider opening your projects, even smaller ones. These fancy search engines nowadays are quite good about picking up code, and your algorithms and graphics can help someone in need.