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Adobe Photoshop CS4 Adds Multi-Touch Trackpad Support
Adobe has added support for Apple's multi-touch trackpad that is found in the MacBook Air and newest MacBook Pro laptops.
The big Mac-specific feature is support for the multi touch pads found on the MacBooks Air and Pro. You can pinch to zoom in and out, twist the image and also "throw" the picture across the screen: if you hold the space bar down, click and drag the image when it is zoomed in and then let go, the picture will continue to move before slowing and coming to rest. It's very similar to the scrolling on the iPhone.Apple introduced the multi-touch trackpad into the MacBook Air at its release in January and has since added the feature to its MacBook Pros. Apple is rumored to add a glass trackpad to the upcoming MacBook revision.
While Apple provides basic multi-touch support in its own applications such as Safari and iPhoto, one 3rd party application called MultiClutch (beta) allows you to add custom keyboard shortcuts to multi-touch gestures on your MacBook Air or MacBook Pro.