These devices can serve as the central hub for creating and managing any projects. Adding Radio, GPS, Gyro etc. using the add-on port, allowing you to address a wide range of use cases.
FreeCAd, Arduino and KiCAD is used to build the projects. The schematics, 3D files and other bits and pieces are freely avilable and anyone can use, improve and contribute back.
All the devices are designed so they are easy to build and repaire afterwards. Additionally all the ICs and parts used in these devices are readily available and affordable.