The exifdate application allows you to consistently name files taken with different cameras using the creation date and time stored inside the EXIF data in .jpg files. This makes sorting and archiving very easy.
Open source project that offer summary and download services on this page is a project that carry out their development work on other open source development sites. Their work is linked to this page via a feature called OFI, and their work is not carried out here on OSDN site.