Initially, your choices are keep themed queue, or build lame cheap queues that no one looks at, since they are on their phones, and you save money. It's not just smartphones, it's also FastPass. Look at Soarin in Orlando - cheap lame FP queue, but they spend no time there, so it's fine. The Standby queue is so long and unmoving, though, it needed interactivity (whether that attraction's "game" is interesting is another question, though).
The new Pooh queue is more interactive for the Standby line, and utilitarian for FP as well.
WDI using digital technology (Kim Possible phones, RFID sorcerer cards, etc) is really them "fighting fire with fire." The Pooh queue fights fire (digital distraction) with water (real world objects and games). KP and SotMK fight fire (digital distraction) with fire (digital distraction). Except unlike the latest iPhone app, SotMK is a) Disney branded, b) theoretically something the whole family can do together.
If I were an Imagineer or Jim McPhee, I'd be doing the same thing. There's little sense in fighting fire with water anymore. The horse has left the barn! (to mix metaphors)
What they could do, though, and I hope they are, is pushing the envelope. Want to get people talking about how awesome the lines are at Walt Disney World? Then inject them with augmented reality devices that have a real 'wow' factor, like the ability to see "through" a wall. Or surface-touch computing (think minority report). If the technology is advanced enough, people will chatter excitedly. I like to think that the $1 billion on NextGen is going to bring us real 'wow' stuff soon. If done right, it really could make people excited about standing in line.