It is time to welcome the biggest advancement in communications you can offer your guests since the telephone; wireless broadband. Except it doesn't involve rewiring your building or buying expensive equipment for your guests, they probably already own it.
Investigating in a wireless network will bring about an unparalleled level of mobility and freedom for your guests who are growing more and more dependent on such technology to be present in their surroundings, not to mention a growing revenue stream from their use.