The iOS app is wonderful. I love it. For 11 years now I've meticulously edited the spreadsheet to show only the events I wanted to attend. Now, it's easy. Love, love, love it.
Seems like there was free Wifi at the Sheraton last year, but my memory may be failing me. I'll be on my iPod Touch, so I'm not sure if I'll get the daily updates, but the app will be sweet nonetheless. I'm not sure if the wifi could handle the convention load if it were free.
http://advertising.dragoncon.org/publ...
http://m.core-apps.com/dragoncon11/