GNU GPL - Copyright helps Copyleft
Sucess so far

Success so far
amicable agreements with a number (35+) of companies
sdome of which made significant donations to charitable organizations of the free software community
preliminary injunction against Sitecom, Sitecom also lost appeals case 
court decision of munich district court in Sitecom appeals case
three more preliminary injunctions 
more settled cases (not public yet)
negotiating in more cases
public awareness