Still low compared to college dorm/cheap apartment ratio of about 10 years ago - those folks are spreading out, and spreading expectations.
We sometimes see ideas spreading 'virally', but really, largely shared ideas are often established generationally - the 'viral' ideas are usually just those ideas exposing and exploiting those slowly growing generational ideas that have been growing as people's desires and needs shift.
Wifi is an expression of this expanding set of generations desire to be ever connected to faster information and resources through computers.
It's a neat time to have grown up in - and I don't think we've fully imagined all the places we can go with it.
It's sort of a 'real' version of the previous generation's largescale exploration of meditation, medication and spirituality, only made consistent, shareable, but oddly balkanized. For instance, there's still awesome music involved in all of it, but more sort of everyone's flavor of the month, and seemingly fewer universal classics than previous generations.