Now that the program for the annual conference free and open source software for geospatial (FOSS4G) has been published we can't think of a reason NOT to register as soon as possible.
By doing so before the 9th of May you keep 160 euro's in your pocket (by paying an attendance fee of 590 instead of 750 euro's). 160 euro's. That makes a lot of Bratwurst & Beer!
But even more important, you also give the organisation committee a good insight of who is joining us at the conference in August in Bonn, and thus you give us the opportunity to fine-tune the program and its side events to fulfil your expectations.
About 150 "early bird" participants already did so. Take them as a good example, and point your browser to http://2016.foss4g.org/home.html.
Not next week. Not tomorrow. Register. Now!