In the last twenty years, we've gone from hotels typically not having Internet service, to some having it and charging for it, to it being absolutely expected and generally included in the room price. Nevermind the details of whether that service is delivered over wires or WiFi. And that new technology, of course, comes with some cost for the hotels, both capex and ongoing. And pondering that "new" expense led me to ponder other expenses hotels have had to take on over the years (telephones!, Air conditioning!, color TV! - I'm remembering hotel billboards from my youth). And that leads me to wonder: Which of these technologies will stop being requirements for hotel rooms, and when? Specifically, will telephones ever vanish from hotel rooms? I'm sure we'll see more hotels moving to IP phones, if only to reduce the cost of their phone switch, but that still requires (for now, in general) a wired network connection to each room. But will we ever see the guest room phones completely go away? Will we just have a card providing a number for the front desk that we're expected to call on our own devices?