I'd like to find an app that will allow me to make lists that I can see from two different views, but where changes to one item are reflected in both views. For example: I'd like to have a list interviewees and cities so I can organize which interviews I will conduct in each city, and be able to view that, for example, in Chicago I have interviews with person 1, 2 and 4. Then I'd also like to be able to look in a list view under person 4 and see all the cities they will be interviewing in. If I make a chance in one of the views like removing Chicago from the profile of person 4, then when going to the Chicago list I'd like to see it reflect person 4 no longer being there. Any ideas of apps that have this functionality? Thanks.