Adobe just published a patch/upgrade to Photoshop CS4. Those who are equipped with this software program will probably be interested in visiting http://www.adobe.com/downloads/updates/ to get the upgrade in order to correct a few performance and feature bugs.
Moreover, the users of MacBook Air and recent MacBook Pro systems can use mutli-touch to rotate documents frame.But, sometimes, it turns out (!) being a nightmare if this is too sensitive. So, Adobe decided to offer a free plug-in to optionnally disable the rotation/zoom commands through muti-touch gestures.