Why o why does the hierarchy window have to open up fully expanded? Fully collapsed would make things so much easier to navigate.
And why o why do those folder icons in the library have to take up so much space? A folder is a folder, I can recognize a folder icon when it's the standard Windows/Mac sized icon. A folder hierarchy would also be much, much easier to navigate than the current library system.

And last but not least: the name of the currently selected figure in the document window - there's far too little space reserved. Giving figures meaningful names is essential in a multi character scene, and being able to read the full name in the document window would be highly appreciated...

Dockable tools/palettes would be a great idea - something that most other 3D and non-3D packages have had for years. Saves a lot of screen real estate.

As for cameras -  the Vue camera system works great. The trackball makes the current camera rotate around the currently selected object - very intuitive and easy to use. Panning the views by dragging with the right mouse button works perfectly.
The Vue interface suits my way of working and thinking very well - except for one thing: the library system. While the hierarchical structure of the Vue library is far more user friendly than the Poser system, it's got one major drawback - content installed in the library doesn't automatically show up. Especially subfolders don't show up all by themselves. This is where Poser does the better job.

The pen is mightier than the sword. But if you literally want to have some impact, use a typewriter

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