Linda A. Walsh wrote:
Get a 144dpi display and watch large portions of the web be suddenly be 2/3rd's their intended size and much more difficult to read. Thus was born the idea of redefining pixels to have a fixed, device independent size so users wouldn't have their interfaces mucked up by web designers who couldn't use points, millimeters, centimeters, or inches. That's where the number 96 comes from -- it's not that it was a best guess, it's a redefinition of 'pixel' in CSS (and HTML5) to fix the size problem when moving to different devices.
I find it strange that anyone is concerned about SVG size. After all, it's scalable. It's size is arbitrary. It has no "native" size. All that's important is maintaining the proportions.
And you can use the command-line interface to scale the image to any size. See `inkscape --help`. Perhaps what is needed is the same ability in the GUI.