Since the screen is now greater than HD and the camera has just been enhanced to 5 MP, PS Touch should be updated to support pictures larger than 1600 x 1600 as quickly as possible as well as adding direct support for the Retina screen. Otherwise it will look fuzzy and seem underpowered for the device going forward. Any estimate on what date this much-needed update will be released?
I don't have an iPad3 myself but I have heard from others that PS Touch looks and runs great on it. Adobe will continue to release updates to PS Touch to make the app better and take advantage of the latest hardware (including iPad3). It's not possible to provide dates around any future releases though. Larger image support is a very common request. Please add your vote here is you haven't already.
Thanks for posting,