Coming from GWT, Backbone seems to miss a built-in solution on how to handle the life-cycle of a view. In GWT, every activity, which is more or less the equivalent to a View in
you are right, there is no build in solution to that (yet).
however it is of course possible to extend backbone to provide this functionality, Derick Bailey has written a blog post about this recently,
take a look here: http://lostechies.com/derickbailey/2011/09/15/zombies-run-managing-page-transitions-in-backbone-apps/
this is by no means the holy grail, you are free to implement as you wish, but it is a very straight forward approach, for handling zombie views, now you still need to take care of other creatures crawling in your memory, but this is a start with the views at least!