Samsung Epic 4G is available in all Sprint retail channels

As a manufacturer of Android handsets, Samsung has agreed to release the source code for all devices powered by Google’s popular mobile OS. The source code let loose by Samsung has the underlying Android OS for Sprint’s latest and greatest smarthphone, minus all the proprietary content which includes, among other things, Samsung’s TouchWiz UI.
To get knee-deep in the "Samsung Epic 4G code, you will need to point your browser to Samsung’s Open Source Release Center".
The Samsung Epic 4G is available in all Sprint retail channels, including Sprint.com, telesales and national retail partners such as RadioShack, Best Buy and Walmart. Reserve Now enables them to purchase a USD 50 gift card to hold a Samsung Epic 4G when the smartphones arrive back in stock. Samsung Epic 4G works on "Sprint's 3G" and 4G networks.