Yeah, a better solution needs to be worked out. In my group, we had two people with no smartphone or wifi device and one person with an iPod Touch, which meant running out into certain areas and fussing with it to check the schedule repeatedly--there was no wifi in the dealers' room, AA, or many other areas. That was incredibly irritating. And not everyone is well-off enough to have one of those devices, anyway. I'm in favor of not killing trees willy-nilly, but there are probably other points where more paper is wasted at the con (example: the flyer tables--maybe getting people to just tape down one or two, or put them in the bags, would be better), and if you want to target the schedules, there needs to be an accessible replacement. Printing up a few large, visible ones and posting them in lots of places would have been a good start, or streaming a schedule on monitors in various places, or ... This way just Did Not Work.