I went to a club in Tokyo, and a guy on the dance floor was using his iPad. Amusing, for me, but perhaps a little annoying for the DJ.
…but if my 10 year old self saw this, his eyes would be bugging out of his head. “You were in Tokyo, at a club, and someone had a keyboard-less panel computer, which he was using on the dance floor. Older me, you’re living in the future! You’re just lucky the wall of the club wasn’t knocked down by battling mechs!”