First sentences of the article:

"Where the streets have no name," sang rock frontman Bono on one of U2's biggest hits. "It must be hell being a postman, then," came the sarcastic rejoinder from the music press.

But the system they come up with is still hell for a postman. He either remembers the 111111 three-word combinations for his square kilometer of delivery, or he can't work without an electronic device.

I see the problem, but hope that there are better solutions. Especially ones that are free: A non-free address system is absurd in my opinion, to put it mildly.