Yeah I went back and read your comment again and see how you meant "evolution", which is perfectly valid (i.e., special case of emergent behavior). However, I know this is going to get increasingly pedantic, but evolution usually implies some sort of survival-of-the-fittest rule, which seems to stretch the definition here:

> That creates selective pressure on the name of ad-hoc networks in that convincing more users to click on them causes further replication.

I was thinking in a more formal mathematical sense. You can write a fairly short agent-based model (for example) to simulate the spread of "Free Public Wifi" and look for conditions where it remains suspended in the population. The analogy is closer to a virus than evolution.

But hey, I didn't mean to imply that what you were saying was wrong or --gasp-- a bad analogy in anyway, and I warned you that this was going to get pedantic. :)