Gmemo is an applet which reminds you of birthdays, feasts (with first name, Mother's day, etc.), or any other event. It is customizable (name, type, date & time, repeat mode, multi-alarm mode, etc.).
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.