Dock Detox is a haxie that will remove application icon bouncing in the Dock. You can turn off the application launch bounces, but not when a particular application is requesting your attention. Dock Detox detoxicates the Dock from this excessive bouncing. Additionally, it includes a development kit for third-party developers to intercept the Dock icon bounce requests and display visual feedback in their applications.
What's new in Dock Detox
Updated Dock Detox for Application Enhancer 1.4.1
Updated Dock Detox for Mac OS X 10.3 \"Panther\"
Dock Detox will now only be loaded for applications you provide in the APE Manager preference pane