The Fourth of July has rolled around again, and for many of us in the U.S. that means a three-day weekend comprised of family time, fireworks (assuming they’re not rained out) and a BBQ (or not -- it’s going to rain).

But I suspect that many of you won’t be fully enjoying these activities. You’ll be too busy mashing your BlackBerry, iPhone, Pre or Android with your thumbs. Citizens of the world, it’s safe to say, are obsessed with their phones.