redytrk, Hotspots are loose connections of wireless internet connections within a building (LANS) They actually have games in NYC, in finding these wireless connections. All you have to do is drive around with your laptop, wireless card catch a signal and email in with a picture of the building and location of the signal.
I went searching for this on the web to and found a few things including this from
http://WWW.Techtv.com "WiFi access has proliferated, offering convenient access to the Internet without the hassle of wires. It's also one of the easiest ways to hack today. Many companies have wide-open wireless access points ripe for the picking. By using a laptop with a wireless card (or even a Pocket PC), an attacker can find and jack into a company's wireless local access network (LAN)."
http://www.internet.com/sections/wireless.html I located this site as well. This site has a complete listing of all WIFI/hotspots.
We had purchased a Sony Vaio, it came with the option of a wireless card. The cost of the card and usage was 65.00 a month, and it stated unlimited access. We talked with another couple who also had the card, they bought out right. (230.00 if I remember correctly) The company that owned the card changed billing practice and it went from 65.00 a month to also included a charge per character. That couple ended up owing close to 450.00 that month even though they where under another contract with that company.
Owning a wireless card can still be very expensive, unless you find a free hotspot out there. Then its free.