Preview at WWDC likely in June, followed by September launch.
Retina Display Support Coming to Photoshop CS6 and Lightroom 4 in 'Coming Months' [Updated]
Supporting this new technology requires significant work by our product teams and we’re committed to provided a free update to all Photoshop CS6 customers this Fall and Lightroom 4 as soon as the work is complete. Please note that Creative Cloud members will receive Photoshop updates more frequently and receive this update in advance of updates for non-members.Users of Photoshop Elements should not expect a Retina update in the immediate future, although that team is still looking into adding support for it.
Adobe Photoshop was one of the high-profile applications highlighted by Apple at June's Worldwide Developers Conference as having Retina display support in the works. Adobe, Autodesk, and Blizzard were three major software companies Apple noted it had already been working with on Retina compatibility, but it is still taking some time for developers to make their applications fully compatible with the new ultra high-resolution display found on the Retina MacBook Pro.
Update 1:36 PM: A second blog post notes that Retina support will be coming to many more software titles than just Photoshop and Lightroom.
We expect to update the following products with HiDPI support, free to all CS6 and Creative Cloud customers, over the next few months:
Adobe Premiere Pro
We are currently evaluating the roadmap for when other products may support HiDPI displays, and we will announce those plans as they are finalized.