Quick update.
Greyhatter and others were curious about the number of WEP/WPA/OPEN nets discovered. I ran some quick tools to get stats. These include the public nets for the mall and hotel, but still give you an idea of what's there:
The Renderlab: Statistics for wireless devices in West Edmonton Mall
For the impatient:
Total found Networks: 489
Access-Points: 427 / 87%
Ad-Hoc: 5 / 1%
Other: 57 / 12%
WEP encrypted: 105 / 21%
WPA encrypted: 136 / 28%
Not encrypted: 248 / 51%
Hidden ESSID: 79 / 19%
Channel:
1: 117 / 24%
2: 2 / 0%
3: 5 / 1%
4: 10 / 2%
5: 2 / 0%
6: 165 / 34%
7: 3 / 1%
8: 8 / 2%
9: 6 / 1%
10: 1 / 0%
11: 113 / 23%
12: 0 / 0%
13: 0 / 0%
14: 0 / 0%