One of the main features of a GWT application is, that you can write all your code in Java and do not need to care about HTML, CSS and JavaScript. All content can be loaded into the same div-element in one HTML-Standardpage. Sounds perfectly alright, but how do you navigate between different views, if for example you need a loginpage and don´t want the user to have access to your application before entering the right logindata?
Of course there is the possibility to have more than one HTML...