If you provide the wrong browser id and try to start a selenium session, like the one shown below:
selenium = new DefaultSelenium("localhost", server.getPort(), "*gf", "http://www.eviltester.com");
Then selenium 1.0.3 will report the following list:
Supported browsers include:
firefox
mock
firefoxproxy
pifirefox
chrome
iexploreproxy
iexplore
firefox3
safariproxy
googlechrome
konqueror
firefox2
safari
piiexplore
firefoxchrome
opera
iehta
custom
This lists a few more than you have.