While applications like Hiss have enabled users to route Growl notifications to Mountain Lion’s Notification Center, the stopgap should become an unnecessary appendage provided that developers take advantage of Growl’s new SDK. From Chris Forsythe on Growl’s Posterous blog, the Growl 2.0 SDK will give developers the ability to use the Notification Center if their apps are already using Growl to show alerts on the desktop. While Growl won’t necessarily be supplanted by the new features in Mountain Lion, the Growl team has acted quickly to provide a way for Growl apps to transition into Apple’s new notification system.

The Growl team wants to give developers the ability to “transition from Growl to Notification Center on their own terms,” responsibly embracing Apple’s latest features while helping developers answer the needs of their users. The team also makes the case that users who will remain on older operating systems can still get notifications on their own terms — theming, frequency of notifications, and what apps send notifications are all still definable in Growl’s preference pane and are still accessible without the Notification Center. And as mentioned back in June, Growl plans to supplement the Notification Center for those with Mountain Lion by handling actions and visual notifications separately.

Developers can download the Growl 2.0 SDK from Growl’s downloads page.

[Growl 2.0 SDK via The Verge]