No it makes a lot of sense in a number of situations today especially with ajax and dynamically updating web pages. I have a web application where users navigat

No it makes a lot of sense in a number of situations today especially with ajax and dynamically updating web pages. I have a web application where users navigate to, lets say, invoices through a tree structure of Accounts -> Packages -> Invoices. Clicking on edit of the Invoice opens a new webpage. If they click the back button, users see the list of accounts all collapsed and will have to perform search, and navigate down again to the account. In this instance users have specifically asked me to open the edits in a new window. In a few cases, I have edits open in the same tab as a popup, but in a number of instances that is not possible for pages with a lot of functionality/fields.