Lot of people at Etech this year are grumbling about the poor WiFi connectivity. The keynotes in the main conference room are packed except that people are working (Working keynote session?!!). Even in the lobby the signal is low.
However, if you stick around the periphery of the hallways and the lobby, the signal becomes 100%, especially, if you are sitting below one of the large portraits/signage in the hallways. Looks like the access points are hidden behind them! I see a blue cable trying to take a peek while I blog this.