This is a small deployment but an interesting one from a portable standpoint: Dave Matthews Band uses between two and four Vivato base stations to cover concert venues where the band plays. The network is used for a variety of band-related business including ticketing services, audio/video information for crew, publishing of set lists for concert attendees, and band personal business including keeping in touch with family and friends. I've been hearing an increasing number of stories like this one about applications where Wi-Fi is being used because it's easy to deploy for temporary situations.