signal-cli (formerly textsecure-cli) provides a commandline and dbus interface for WhisperSystems/libsignal-service-java
HBCI-Bank-Anwendung in Java, lief direkt auf Anhieb
media streaming server and clients
Serviio is a free media server. It allows you to stream your media files (music, video or images) to renderer devices (e.g. a TV set, Bluray player, games console or mobile phone) on your connected home network.
Tool to convert an addressbook from ldif to vcard
WebcamStudio is a virtual webcam software that you can use with Skype or flash website like UStream or Stickam to create a professional looking broadcast, including banners, animations, transitnimations and ions, etc...
OpenMeetings is a free browser-based software that allows you to instantly set up a conference in the Web. You can use your microphone or webcam, share documents on a white board, share your screen or record meetings. It is available as hosted service or you download and install a package on your server with no limitations in usage or users.