One: A business can easy put up their own access page (landing page as you called it). But, if the customer is in the Business, all he has to do is “look up” at the static displays & digital boards for the daily specials & deals.
Two: You said ‘customize the user experience’ … YOU don’t know what my experience is; or how to customize it. This is buzz word BS. My computer blocks all pop-ups, flash ads & videos and most in-page ads. … If I had to spend more than a minute or two wading though a log-on screen of ads, I would not use the service. … And very likely prevent your malware and/or viruses from being loaded to my system by doing so.
Three: what makes your access point any different from any other $40 access point (wireless router in common terms)? Are you furnishing these FREE?