Hello! I'm creating digital-out-of-home advertising solution with social services (wayfinding, wifi hotspot). It's standalone digital kiosk (smth like Link NYC or CIVIQ). We have two hypothesis' - traditional OOH ad does not attract attention; and second - advertisers need analytics. It's very pricey project, so working lean we need to create an MVP. I think that it would be tablet in taxis. It'll help us to validate two hypothesis cheap. But I can be wrong, so I need an advice from you guys. What MVP I have to create for this B2B project?