Have added messages and staticfiles app to INSTALLED_APPS example, since they are now included in the tuple by default. Also, since the book does not deal with either of these, have changed the wording slightly to emphasize that not all apps will be discussed later.
Updated a couple of points in the 'Django and Python 3.0' admonition section: 1. Made it clear that the compatibility issues exist for the 3.x series, not just 3.0. 2. Made it clear that Django as of version 1.4 doesn't support Python 3.x 3. Changed the verb tense in a couple of places to made it fit the context more appropriately.