According to their latest election manifesto (https://wiki.piratenpartei.de/Bundestagswahl_2009/Wahlprogra...) their main points are:

* legalisation of non-commercial copying

* prohibition of DRM technologies

* right to derive from existing works

* reduction of copyright terms (expiration with death of the author or earlier)

* (continued) prohibition of patents on software, business models, genes and seeds