I was quite surprised to see the large number of Mac laptops at NANOG 42. I didn't do a formal count but it seemed like about 1/4 to 1/3 of the laptops in use were Macs.
...You know, now that you mention it, I was also quite impressed with how many macbook pros there were in room as well. That would be good to informally track I think : what tools(laptops) do NANOG folk tend to use? as this data might help SW dev types to target their netTools distributions to mac platforms more quickly. In the good ole days it seemed like 99% were PCs & maybe a couple were reinstalled with some form of unix, and the rare and incompatible couple of macs in the room were driven by freaks speaking a different language (appletalk) and hitting weirder clover keys than the rest of us. Now, Apple seems to be the neteng laptop of choice, what the cool kids drive. Bill