Here is an article from NPR's The Salt on the trend of craft brewers to can their beer. I expect to see more canned beer in the future and suspect most brewers will have both cans and bottles. One thing I didn't know was that cans now have a polymer coating to reduce the metal taste you used to get when drinking beer from a can.
I like caned craft beer, especially sixteen ounce "Tall Boys." The big cans - not the beer - remind me of my younger days. My buddies and I would down two sixteen ounce cans of Coors Light apiece between the house we rented and the entrance to Jack Murphy / Qualcomm stadium, where we would then buy tickets to bleacher seats to watch the Padres. I was too cheap and poor to pay stadium prices for beer and the pre-game thirty-two ounce pound was plenty. But now that memory brings to mind Tony Gwynn and that makes me sad.