After many tests I've done about content management, I would like to post here my thought about the changes made in v5. I can't say that the mix between folders and content is a good idea, as far as I've tested it.
Compared to v4, where folders were including contents, the actual way of doing is absolutely ununderstandable for an average user (including me). Actually, a folder can contain only other folders, as the folder itself can be a content... It's not what we are used to see, as all actual users interfaces, from x11 to OsX and Windows, use at least different icons for folders and files. Of course I explain it to new users when they are in training courses,
but it doesn't seems very smart, and the content management looses all it's intuitively.
Impossible to edit a content if we already are inside the folder, as we have lost the "Edit actual category" button. The user need to click and wait for the upper level menu to display, and then click again on the folder name to edit it's content.
The icon used to view directly the content in Browse mode, next to folder name is very cute... and very small when users need to click on it all day long, it could be interesting to have a reasonable sized icon (or even a real button).
Compared to v4, we can't choose anymore to display the content in additional places, like we were used to do by using "Category" tab in v4. We can do it putting our hands into theme coding, but this remove a lot of flexibility for end-users, and isn't the goal of a CMS.
Due to folders/content mix, it's impossible to have a content into a subdirectory, without having the sub-directory being himself a new page, and thus a non-desired content (undesired page which can be accessed through navigation bar & drop-down menus).
May I didn't understood everything in the new way of doing, but this prove at least the loss of intuitively, when a 5 years regular user can't achieve his basic needs.
As easier can be the page coding, peoples who'll spent the more time on In-Portal are end-users, and everything should be done to ease their everyday's life, with a less-click-as-possible strategy, if we want to compete with others CMS.