The Serval Mesh Extender is a small, low power, low cost Wi-Fi access point running Linux and Serval DNA to provide long-range mesh networking to Android devices running the Serval Mesh (app for Android).
Eventually the Mesh Extender may provide a web UI or web service interface to enable non-Android devices such as iPhones and feature phones (which cannot run Serval DNA) to access the Mesh network.
The Mesh Extender is currently being prototyped with grant funding from NLNet.