From Music Hack Day
 About the hack
Sign in at the same time as other friends using Ubuntu One and play the music that you share!
For when you're jogging together, or for silent discos: listen alongside your friends to music that you both have in Ubuntu One.
- Source on launchpad: lp:~sil/youoneteeoh/listentogether
 What APIs, tools or kit did you use?
- Implemented as an extra part of u1.to, the Ubuntu One labs project
 Anything left to do
Publish it to u1.to, the live server :-)