As long as an iPhone or other such expensive device isn't required, I support this. I'm also not into phones. I don't want to be that guy who goes out with friends, but is giving his phone more attention that anyone else he's with, you know the type. So annoying and disrespectful!

As a counter measure to manipulation, each device would need to operate on an algorithm similar to the key-fob that came with the CE. It's a common security counter measure and could be implemented easily.