Elsewhere there have been complaints about the folio under the door, especially when they aren't entirely in the room. Given they have names, addresses, and maybe even CC numbers, it's not wise to have them available to anyone walking down the hall, guest or not. TV reviews work for me. If I see something wrong then a call or visit to the front desk becomes needed. Most TV systems also allowed to email the folio.

Maybe this will be part of the next app where you can review room charges real time and even check out.