My idea about immersion journalism -- in which "users" retrieve a story with cellphones and PDAs by following visual prompts in the real world -- received a little bit of attention. Check out what the Poynter Institute's Steve Outing said here. And if you can read Italian, take a look here.
My posts on the subject, which focused on the role that technologies such as Grafedia could play in this new form of storytelling, also generated a few emails. One of which pointed out that the idea of footnoting or hyperlinking the real world is part of a larger movement in art called spatial annotation.
Check out this site for some thought-provoking examples.