You might also consider reading Hotlinked no more or Where Google is heading: SAL 9000.
25
Aug Thu 05
Adium settings for Google Talk

I haven’t used it yet — I’m quite pleased with Instant Message from MSN and Yahoo — but in case I ever want to use my GMail account to IM here would be the settings in Adium:
Jabber ID: [username]@gmail.com
Password: [my GMail Password]
Connect Server: talk.google.com
Resource: Adium
Port: 5222
Mail: [my choice]
Security: check “use TLS encryption” but leave “force old-style SSL” and “allow plaintext authentication” unchecked.
Voilà. (via NSLog)
written by Kevin in web stuff