In the very near future...
Few minutes too early.
I'm at Menlo Park Caltrain stop.
There's that WiFiBlast symbol again, a square with a dot in the middle.
Next to this symbol is a string of characters.
On my iPhone I select the WiFi which matches the string of characters.
A webpage pops-up, status of the next train; on time.
...
I'm on the train.
Another WiFiBlast symbol.
I choose its WiFi on my iPhone.
An in-train movie is starting to playing on my iPhone.
...
San Fran.
I'm on N Judah Muni in a tunnel not moving.
Looking around I spot a WiFiBlast symbol on one of the Ads.
I choose its WiFi on my iPhone.
An infomercial for the product/service starts to play.
...
Walking on 9th Ave.
I glance up and see a WiFiBlast symbol in a second floor window of someone's home.
I'm tempted, but walk past or I'll be late.
...
WiFiBlast symbols all over the museum.
Excellent, I use my iPhone as an audio & video guide.
...
I'm sitting in de Young museum's cafe.
Across from me is a girl with an open laptop.
On the lid is the WiFiBlast symbol, this time with two strings of characters.
I choose the first string as the WiFi on my iPhone, and the second string I enter into the URL field in Safari.
A webpage pops-up, with her band's details and a choice of their songs or videos.
I select and watch the video.
I'm impressed.