- Centralized PIM storage solution
- Framework for real time communication.
- Already known from KDE 3, this is the visual component technology of KDE 4.
- Multimedia framework.
- Solid is the library to talk to when KDE 4 applications need to interact with the system hardware.
- Automatic natural language detection technology
- Desktop search engine
- Providing access to the GGZ Gaming Zone, a free online gaming centre.