Wow. The eruption of Eyjafjallajökull in Iceland and the resulting ashcloud has had an effect that I would never ever have expected. A near-total closing down of the European airspace is such a drastic thing to happen to nobody seems to have expected. It has certainly not been included in the list of worst-case scenarios to plan for in company and government contingency plans. Where does this leave us? In a very interesting situation indeed. Worst-case, we will have to do without air travel for months.