Well the latest and greatest OS X release is now here.
Not had a chance yet to try it. Will need to ensure all my key apps work with it and if my laptop will take it.
We will be getting it soon either way as its time to replace our old PowerBook.
My MacBookPro still has plenty of life left in, so the new laptop will go to Caroline while I turn the PowerBook into a server.
Update: 27th July
Adobe and Apple have worked closely together to test Adobe® Creative Suite® 5, 5.5 and CS6 editions and individual products for reliability, performance and user experience when installed on Intel® based systems running Mac OS X Mountain Lion (v10.8). Earlier versions of Adobe Photoshop® (CS3 and CS4) software were also tested with Mountain Lion and there are currently no known issues.
Adobe requests that users discovering problems report them to Adobe.