Yes, punch has been simmering on the back burner and really became something of a big deal in the later part of 2010...so much so that I've heard many folks (mostly NYC-based) crying uncle. Still, it's not unusual that it would have peaked during this time of festive gatherings and colder weather. I don't know how much staying power it can have...will folks be packing thermoses of Fish House on picnics?
Much of the glory/blame certainly can be put on the shoulders of David Wondrich for his
new book and concurrent evangelical tour. However, I also tend to see punch as a predictable evolution of the popularity of dealer's choice. Punch is an way for professional bartenders and novices alike to craft a product that will please a variety of palates without requiring as much labor a la minute.