I haven't tried Photoshop. But, I'm not seeing any problems viewing the EXIF in the sample images for the DMC-ZS3 using multiple image editors and browser plugins.
Are you sure you're looking at the full size photos versus the thumbnails?
When you click on a thumbnail, your browser should load the full size original image.
I haven't check all of them yet, but the ones I have checked so far have EXIF info. Is there a specific sample that you're not seeing the EXIF in?