What they cover for the general public is usually only the most visible features. There's additional new stuff under the hood, which will be available for 3rd party developers to use in their apps.
The benefits might not be apparent immediately, but they'll start showing up in apps written to take advantage of 10.8's features. Some improvements in the frameworks will effect existing apps that use those frameworks.
The benefits might not be apparent immediately, but they'll start showing up in apps written to take advantage of 10.8's features. Some improvements in the frameworks will effect existing apps that use those frameworks.