It's a while since I've done a big, set-piece presentation on a big conference stage. The kind with anxious organisers and long-suffering AV people. This thread (and this fork) brought it all back and reminded me of the horror of presentation remotes. There's clearly still a market for something obvious yet satisfying.
I bet the problem is that they're also trying to make it 'discreet'. This is the bit of the battle they should give up on.
That's what the button was about.
Brendan had a similar thought.