Google Android is built on open source software and uses a version of the Linux kernel at its core. While Google keeps some source closed when it’s developing new versions of the operating system, it tends to release them as open source upon launch, allowing smartphone makers and wireless carriers to make core changes to the operating system to meet their needs.
By releasing the source code for the Dell Streak and Aero, Dell is going to make it a lot easier for technically-inclined customers to make their own modifications to the these devices as well. I suspect we’ll start to see custom ROMs appear before too long.
via Dell Blog