I've found Pages simply great and very useful on making documents for idendity scopes, very lighter and faster than InDesign for medium-small documents.
The only thing I missing inside it are the text variables.
Well, this is the name used in InDesign, I'm talking about the creation of text pieces, inserted inside the text areas, this is very useful, if you need redundant informations, like client name and project name.
Does it exist in Pages?