Gmail Notifr

Gmail Notifr is a Mac OS X program, and is open source. It is RubyCocoa code, making low resource and super fast. Will handle many accounts and Google hosted accounts. Will check Gmail at your configured schedule. You get alerts that can be growls and normal sounds. Updates are automatic through Sparkle. There are no daemon processes for the background. It is Google’s own official notifier. Oh, yes, it is open source and it is also FREE / no charge to you to use.