This press release is a nice roundup of a few interesting Wi-Fi deployments: iAnywhere is a subsidiary of Sybase and offers software and services to companies looking for Wi-Fi networks.
One of the deployments described here is by Britannia Airways, which uses Wi-Fi in its crew rooms for cabin crew and pilots to check rosters, updated destination details, and air traffic control notices. The system automates 50 paper-based workflow processes.
Another cool one is at a department store in Korea. Sales clerks carry wireless terminals that let them process purchases from anywhere, reducing lines at cash registers.