You can also use HDMI off your phone to your tv. Works well for me.
Don't have a Droid phone but if I did it wouldn't work for me. I don't have a TV provider that has the agreement with ESPN, I have an internet provider that does. There are hundreds of internet providers that have ESPN access but about 10 TV providers that allow you to use the ESPN apps. For whatever reason you don't need to have one of the TV providers for the XBox like you do for the phone and tablet apps to access ESPN3. I just can't watch the content on ESPN and ESPN2 on the Xbox, only the ESPN 3 content and some ESPN/ABC content that's archived like all the bowl games.
I think there are way more than 10, when I'm logging in, I see a very long list of providers