Google has always been a little slow at developing its applications for Mac users. Google Calendar and Gmail Notifier for the Mac platform have always had performance issues, especially in Safari. But not anymore.
The Google Blog has just informed us that the Mac Team has been working on creating better user experiences for Mac users, and have just released better Safari support for Google Calendar, and a Mac upgrade for the Gmail Notifier. Calendar now works perfectly with Safari, and Notifier now has notifications for upcoming events and unread mail, as well as new icons and custom sounds.