Interesting concept, but the question remains: Will it work? I hope it will. As a Mail Artist, I mail hundreds of envelopes each year, and to write or figure very long addresses can be a real pain sometimes. This URL type address seems to simplify things. But also rises the chance of confusion if similar words are assigned to places near each other.
Off-topic, but what does being a mail artist entail?
A mail artist is one who does Mail Art: art sent by traditional mail. Mail Art works with the exchange of art between artists from all over the world. Here's a better comprehensive guide: http://www.mailart.be/initiation.html
How cool! I'm beginning to (ever so slowly) try to get my own art skills to someplace I can be happy with. I'll have to look into that when the time comes....