Gmail+Growl 2.0 for Mac can be downloaded from our website for free. This free Mac app is an intellectual property of waffle software. The program lies within Communication Tools, more precisely E-mail.
From the developer:
Gmail+Growl is a plugin to the Mac OS X version of Gmail Notifier that shows you notifications using Growl when new mail is received.
You may want to check out more Mac applications, such as Zimbra Toaster, PageSender or Mail to ToDo X, which might be related to Gmail+Growl.