Latest versions of Photoshop, Illustrator and InDesign among others have not yet been fully tested with Leopard, leading to fears that they might not work properly.
Not yet optimised
"CS3 hasn't fully been tested under Leopard," Bruce Chizen, Adobe's CEO told Reuters in a recent interview. "If it doesn't work, we will make the necessary adjustments."
Adobe Creative Suite software is very popular among Apple Mac users and so it'll be vital to fix any compatibility issues as early as possible.