Current network information API on EFL port doesn't support cellular network.
Hmm, eeze can't support wireless network now. EFL community recommends to use connman instead of eeze. I need to use this functionality as soon as possible. I'm going to see how to use connman.
Using connman has another advantage - for Linux it can be potentially shared with Qt and Gtk ports as well.
Closing this bug because the EFL port has been removed from trunk. If you feel this bug applies to a different upstream WebKit port and was closed in error, please either update the title and reopen the bug, or leave a comment to request this.