The app wasn't meant to attract new users but mainly to support existing ones, so it's an option that is "good to have" rather than the product itself. If a use

The app wasn't meant to attract new users but mainly to support existing ones, so it's an option that is "good to have" rather than the product itself. If a user or a company deploying Google Apps felt that they needed a native option then it's available, and for Google it won't cost much to maintain because they are already investing in the webapp.