As most of you probably already know, I'll be doing a half-day class in Denver on WiFi/2 (hey, I like the look of that acronym...not very original, but it does the trick, huh?). I plan to assemble a WiFi LAN with a make-believe internet connection. Besides the basic setup and 128-bit WEP configuration, is there anything else that anyone thinks I should cover in particular? Hotspot stuff is usually pretty easy (no encryption; turn off peer services). Tips for hotels (mind the SSID; dealing with captive portals)? Incompatible security (EAP, LEAP, TKIP, WPA)? VPN concerns? Channel-hopping?

Input is greatly appreciated. Hope to see many of you there!!