I have built WAN emulator using a UDOO single board computer running linux. There is a lightHttp based interface that uses cgibin scripts to invoke netem with appropriate parameters.
I would like:
a) to replace the web interface with a Node.js implementation
b) extend the interface to support the additional functionality of displaying live graphs of bandwidth consumed, using something like d3.js. These graphs would be fed from vnstat. Basically a port of [login to view URL] to use d3.js
Included are some crude mockups of the interface to give an idea of what I'm interested in, although you are free to make layout improvements