ConnMan, short for the Connection Manager, is a Linux daemon for managing network connections and has been around going back to Intel's Moblin days. ConnMan is lightweight and an open-source alternative to NetworkManager. While ConnMan was shipping in MeeGo during the 0.xx releases, today the network stack is finally up to version 1.0.
ConnMan 1.0 provides support for Ethernet, WiFi, Bluetooth, GSM, UMTS, CDMA, LTE, IPv6, and IPv4-LL. The GSM/UMTS/CDMA/LTE support is provided by the oFono stack, another Intel OTC project. Other ConnMan features include advanced routing and DNS configuration, built-in DNS proxy and intelligent caching, WISPr hot-spot log-ins and portal detection, time and timezone detection, proxy handling, connection sharing/tethering, and detailed statistics handling.
With ConnMan 1.0 there is also now a stable D-Bus API that will be maintained for 1.x releases.
Additional information on the ConnMan 1.0 release can be found at ConnMan.net.