Agreed. I presume the main point of charging at all is to match supply & demand, but given that everyone believes the price is <= 0 anyway, this obviously isn't working any more.
I guess if you're in SF that may make sense. Being in WA I wouldn't fly down for a couple of days even if the price was free. Just wouldn't be worth the time for a cell phone or tablet.
UPDATE: Although after rereading what I wrote, I realized that those people whose time means so little that they'd attend a conference largely to get the cellphone/tablet are exactly the people you don't want at the conference.
