Couple of simple commands to setup shared terminal sessions with screen. Neat. Requires some permission changes on some hosts. Awesome for paired programming.
Camping hack festival, 3'000 people, outside Amsterdam, 31 Jul - 4 Aug 2013. Interesting. Guaka might be presenting.
German mobile telco from Aldi. Offers great roaming data deals 7 days, 65mb for €5 anywhere in Europe.
A mobile telco in Belgium which offers pretty incredible deals, €15 for 2Gb of data, 1k texts, plus the €15 as credit. Plenty of calls to other on-net customers also.
The hub is a cross between a members club, an incubator, a serviced office, and a few other collaboration methods. Hat tip guaka.