And so this is Christmas (almost)...Whether we stick with the traditional writing and posting of cards, or whether our holiday greeting is an all-encompassing Facebook update, this time of year is probably the most common for flicking through those little black (real, electronic, metaphorical) address books and wondering just 'where is s/he now?'One of the ultimate pleasures (and sometimes pains...) of travelling is the people we meet; one of the ultimate pains (and sometimes pleasures...) is saying goodbye to them when the time comes to move on. Thrown together in a strange place - perhaps literally strange, perhaps in the sense of being unfamiliar - often breeds an intense bonding between people whose only point of reference is that they happen to be in the same place at the same time. For a moment, an hour, a month or a year, this can be an intense joy. It might even spawn...