New Resizable Font?

Wow this sound great to me and I am a big fan of your resizable vector font as this is one of Espruino's unique features.

Like this very much about the new resizable font:

It uses half as much flash memory
You can choose the line width you want
It's faster to render when drawing single pixel width fonts

Well things always change.

What about: you keep g.setFontVector(s) and calculate the scaling factor to have a backward like compatibility as this could help not to mess up with the formatting of existing projects.