The Code Sprint provides the opportunity for projects to get together to make plans and possibly work on new features. We provide facilities with the power and wifi, it's up to the individual projects to decide what the time is used for.
Code sprints are not just about writing code - project has many needs including documentation, testing, and providing feedback. There are roles that need to be filled, no matter what your expertise.
When & Where
At FOSS4G-Europe 2014 we're looking to provide dedicated facilities the day after the main conference (Friday 18th July) as well as throughout the event in the main venue.
Further details and show your interest on the OSGeo wiki http://wiki.osgeo.org/wiki/FOSS4G-Europe_2014_Code_Sprint.