Even outside the conference rooms there is action going on. Most high profile projects and distros have their own stand, displaying demos, gadgets, advice and friendly chatter.
OK, a few emering trends I saw this year. First, the amount of Apple laptops that were used. Here a picture taken in between 2 talks. In this shot you see both a MacBook and a MacBook Pro. It almost looked like everybody had them, there were that many. Also, for all the talks I 'd been to, There were only 2 non-Mac speakers (the guys from fedora/centos).
Another trend, when you don't have an Apple, at least show up with an Eee PC. I don't think they are available in Europe yet, still that didn't stop them from popping up everywhere you looked.
That's how a fried sliced potato looks like from behind. Poor guy, dragging laptops, water and all kinds of stuff around the place.