Kde Connect is a project aiming on integrating different devices with your KDE Desktop. It was a Google Summer of Code project and I have to say it is rather promising.
Albert Vaka has updated his blog with latest state of the software. Please read here
In saucy kdeconnect is now in the repositories. No need to build yourself.
Latest version (03 okt 2013) lets you share files directly from your phone, to the kde connect app, and they show up on the desktop. This is good in so many ways.
Look at this short video on how it works
For everyone that has problems: I am not a KDE hacker. I reasoned out how to get this working reading comments and asking around. I am sorry I dont know how to solve the problems you have. Also as it is from a git – the source might have changed since i wrote the guide.
To get it running on Ubuntu you need some dependencies sortet out first
sudo apt-get install cmake kdebase-workspace-dev libqjson-dev git libqca2-dev
When that is taken care of you can clone the repository
git clone git://anongit.kde.org/kdeconnect-kde
To compile do this:
cmake -DCMAKE_INSTALL_PREFIX=/usr ./ make sudo make install
After that we just need to make kde aware of kde connect.
Important to run this as normal user
qdbus org.kde.kded /kded loadModule kdeconnect
This should return true. If not, it seems redoing the compilation can fix it. It did for me. So just try again.
After that we are almost there.
Now you can find devices in the kde system settings. Download the apk to your phone and make sure it is connected to the same network as your desktop.
Disclaimer: This is pre beta software. Dont expect it to work flawlessly.