Note that all of these are open, unsolved problems. The first one is Canon's fault. The remaining is the result of a philosophical mistake - the lack of extended metadata in the filesystem, and tools to manipulate it. Apple showed us the way, more than 20 years ago, with the resource fork. Yet we still do not have an equivalent system in any modern OS. EACH date and time should be accessible via ls. The ORIGINAL date and time should remain the same even when the file is changed. And extra metadata (exposure, lens, camera model and so on) should be extended metadata stored on the filesystem, not in the file. But then there would have to be a cross-platform replacement for the FAT filesystem, which has extended metadata, and everyone would have to use it. It's not hard, just hasn't been done.

* There is no cross-platform method of doing drag-and-drop of files to a browser, to upload to an online album service, or printing service. Consequently getting images printed is usually a tedious one-at-a-time upload process, or else using a Java applet, or ActiveX control, or stupid one-service-only, one-platform-only special image uploader application. For the old-fashioned method of uploading into a web form though, there is a Firefox extension to make it easier (described below).