Pet Penguins version 0.1.0 is now available.
In this version there are ten penguins and a small iceberg for them to chill out on. You can toss the penguins fish, pick up the penguins, and move the camera around. Customization features will be added in future releases.
You can find the Pet Penguins web app at petpenguins.com.
The Chrome Extension is coming soon.