Will views close with new screen?

Just a quick question on views and screens behavior.

If I use a screen other than the default screen, like this…

Dim s As New iPhoneScreen_MainMenu App.CurrentScreen.Content = s.Content
…will all open views from the previous screen close automatically? Does it even matter?

The reason I’m asking is that I’d like to go back to that previous screen later in the app and I’d like to have all views closed for that.