Just to keep some essential features that are needed in the spotlight:

1. ability to change text font/boldness for each text and math region via a font control dialog
2. more control over the format/scale/axes of 2d/3d plots
3. the ability to choose default units and unit systems (i.e. default units for length, time, velocity, etc. and Imperial or Metric)

and a couple of new requests (at least, new for me):

4. the ability to add page breaks
5. when the user drags to select a large group of text/math regions that extends below the viewable area, the user needs the screen to scroll down at a rate of speed proportional to the distance the mouse cursor moves outside the viewing area (selecting large blocks of text/math regions is a pain because the screen will not scroll down unless you keep jiggling the mouse, and when it scrolls, it does so slowly)
6. a line on the right showing the edge of the print area