Alexa now has an Everywhere Intercom

Been a long-time user of Alexa as an intercom, but you had to select a destination.   Now this new capability is nice, specially useful if you have a large multi-floor house or connected outside space.  Previously you could broadcast, but only one-way.   I could also see this as a means of asking the opinion of people in the house, as is shown in the example, and recording them in a list.  Maybe a business use?   The latter is not done automatically now. 

Now all your home’s Alexa devices work like an intercom  in Engadget

Amazon's 'Drop In' feature now works across the entire house.
Amazon Alexa users can now use the “Drop In” feature to talk with all of their Echo devices at once, Amazon announced on its blog. Previously, Drop In messages could only be sent to one other Alexa-enabled device at a time -- a user with an Alexa device in the bedroom could “drop in” on a device in the kitchen and have a two-way conversation.

Now, you can use a device to send a message to all Echo devices in the house at once. This could be helpful with asking group questions like, “Does anyone want anything from the grocery store?” according to the Amazon blog. To start a group Drop In conversation, you can ask Alexa to “Drop In everywhere.”  ... " 

Update:  Later I read that they have also added an 'Everywhere' option to the reminder feature,  'Set a reminder at 5 PM to dress for dinner' ... Everywhere'