The Rhodes framework is a platform for building locally executing, device-optimized mobile applications for all major smartphone devices.
ModemManager is a DBus-activated daemon which controls mobile broadband (2G/3G/4G) devices and connections.
ECDH-Curve25519-Mobile implements Diffie-Hellman key exchange based on the Elliptic Curve 25519 for Android devices.
libmbim is a glib-based library for talking to WWAN modems and devices which speak the Mobile Interface Broadband Model (MBIM) protocol.
SDL2 Based Game Framework for mobile devices