With my iPad connected to iTunes, I can drag an image file into the PS Touch area in the Application tab in iTunes. How do I access that file from PS Touch? I can't find it! If I try to delete it from iTunes, I get a message that says it will be deleted from my iPad, so it must be there somewhere, but I can't seem to locate it with PS Touch.
Its not possible to transfer files from iTunes to access within Photoshop Touch.
With iTunes connected you can go the other direction though, and send files to iTunes and then download them to the computer.