KDEConnect
This is the comunity page for KDE Connect. It should contain useful and up to date resources for both users and developers.
Installation instructions
Kubuntu and Fedora: http://xmodulo.com/2014/01/integrate-android-kde-linux-desktop.html
Note for OpenSuse users: remember to open the ports in your firewall. The port range is 1714-1764 for both TCP and UPD.
Development
If you are interested in contributing to KDE Connect, please join the mailing list [1] of the project. You might also want to read Albert Vaca's development blog [2].
You can find the sources in the following repositories: