Unfortunately, the name "Android Enthusiasts" is so close to generic that it's very unlikely we'd be able to stop them from using it.
However, our wonderful core developers have told me it's pretty easy to make that hyperlink in the Google results say "Android Enthusiasts - Stack Exchange" rather than "Android - Stack Exchange," so that change will be implemented soon.
If you're looking to become their friends, maybe a representative from this site could join one of their future hangouts as a special guest? Just a suggestion; interact or don't interact with them as you wish. :) As Matthew Read pointed out, this site is the top Google hit when searching "Android Enthusiasts" so there's nothing to worry about right now. They probably just didn't know this site exists and already uses the name they decided to adopt a week ago.