crud

I have to integrate a Drupal 7 site with a custom iPhone app. I need to be able to be able to perform the create, retrieve, update and delete process on the Drupal site using the iPhone app.

I have 20+ content types each with multiple custom fields. So what I need to know is will I have to write my own custom solution or is the Services module able to perform most/all of the functionality for me?

With Drupal 6, menu tokens are able to automatically load database records given an object id, this is a great feature, however this requires developers to implement 'load functions' for loading their records. Those 'load functions' are often just a wrapper around 'SELECT * from {mytable} WHERE mykey = %d'.

We could do better, and allow automatically load operations, and even better, enable automatic basic CRUD.