This is a pretty big move. In the past, developing accessories for phones has had a huge overhead for development, and weren't easily distributed as expensive l

This is a pretty big move. In the past, developing accessories for phones has had a huge overhead for development, and weren't easily distributed as expensive licenses from manufacturers were required, or users had to root/jailbreak their device. Consider how Square changed the payments market with their simple hardware device. Now we have the tools to allow more people to begin experimenting. It's a huge opening for hobbyists and startups to really get a great experience with making some hardware for Android. I'm really excited to see what people can come up with.