Please, do not remove updatable views (triggers in views).
I think this feature makes possible real transparency in implementation based on table or view for a relation. So, the app only have to do select/insert/update/delete over a relation, and I can choose if this relation is a table or a view. I found this particulary usefull in type/subtype implementation, where the view is a join between super and subtype. I'm clear?
Thanks
Adrián