You've Got Gmail 1.0 RC3 update 1 released!
You've Got Gmail - Gmail Notifier for Trillian
UPDATED!!! UPDATED!!! UPDATED!!!
You've Got Gmail is a Gmail notifier plugin for Trillian Pro (version >= 2.0).
You can manage your Gmail accounts, see the list of the accounts (with new emails number) in the My Mail Accounts section of Trillian and get notified when a new e-mails arrive via systray popup windows.
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Download zip package (without installer)
Download older versions
Find out more in You've Got Gmail Forums