Recently i visited UK for the XEN Hackathon . Before, going to London we decided to visit Cambridge for a meeting with the team and see some old friends. I will never complain about the weather in Greece. The first three days the weather was terrible. Despite the beauty of Cambridge, we were not able to enjoy the beauty due to bad weather conditions. Looking at Parker's Piece Park. Rain, rain, and... rain! Next we moved near to London Heathrow Airport for the XEN Hackathon. The Hackathon was hosted on the Rackspace Offices. The area was nice and the offices impressive, although they were quite outside of the town. We were around 40-50 people in total and although not all of the topics were interesting, i was a good opportunity to learn some things for XEN. Room scheduling: everything at runtime. I don't travel often any more, so this trip was a good excuse to see some friends and enjoy London. One place i have not visited previous times was the Brooklands Museu