Hotspot throughput measurements

On another thread, someone suggested that you couldn't expect better than
500kbps throughput at an average hotspot.

That made me curious, so I visited 7 different hotspots in Austin, Texas,
and used pcpitstop (http://www.pcpitstop.com/) to measure actual throughput.
At four of these, I made 3 different download measurements and averaged
them. At the other three, I made 15 different measurements and averaged them
(because there appeared to be more contention and more variability). I used
the "Internet Connection"/"Download Bandwidth Test"/"T3 and Fast Cable
bandwidth test", which sends a 2 megabyte (16 megabit) http stream to the
host under test.

All sites were 802.11b with full 11 mbps associations, except for one
802.11g site where I got a full 54 mbps association. The sites were a
community center, the main library and a branch site, an Irish pub, a
Starbucks, a Borders, and a Schlotzky's sandwich shop on the University
campus.

Bottom line results:

1. The average of all download throughput samples across all sites was 1165
kbps (kilobits/sec). Only 3 of the 57 samples were under 500 kbps (315, 481,
495).

2. The lowest per-site average download throughput was 856 kbps. The highest
per-site average was 2456 kbps.

3. Although I was unable to run upload measurements at the free sites (due
to a firewall that blocks the pcpitstop ftp application), at the two
commercial sites (T-Mobile) I got 3-sample averages of 493 kbps and 503
kbps.

I would be interested to know what throughputs are like in other areas. The
results tell me that the Austin hotspots are underutilized. My gut instinct
was that 500 kbps was too low, but these figures are unexpectedly high.

So, if you happen to visit a hotspot soon, could you run pcpitstop a few
times and post results here?