It seems that the ISA Expo Exhibition and Conference seems to shrink a bit each year. Major vendors had relatively small booths. A few people told me this will be the last year ISA holds this big event and moves to emphasize regional events. From a control system security perspective, it was only five or six years ago when ISA Expo was THE show. Times change, but I must say the Security Lounge during the Tuesday evening cocktail hour was good fun seeing so many familiar faces.
In years past, the buzz of ISA Expo was wireless, but at that time it was vendors putting down a stake saying they were working on wireless. Then it seemed to recede a bit last year. This year the floor is full of wireless enabled products you can buy, wireless protocols and security to consider, and all other things wireless. Wireless antennas were visible even in the few booths where wireless was not a big buzzword on the signs.
A few other odds and ends from the floor: