Yes. Jobs famously took a calligraphy class at Reed college, and mentioned frequently how it influenced him and e.g. the design of the Macintosh.
http://www.leemunroe.com/steve-jobs-calligraphy/
http://www.smithsonianmag.com/arts-culture/a-tribute-to-a-gr...
I'm aware of his appreciation for typography.
But:
1. He's gotten up on stage in front of typographical faux-pas in the past.
2. Appreciation for typography doesn't translate to taste in mathematical typography. Math reads differently.
You worked for Frame? I used to love FrameMaker. To this day I haven't forgiven Adobe for killing the Mac version.
Me neither. And, yes, I was the first employee after the 4 founders of Frame. I did the PostScript output, all the Book functionality, conditional text, and the whole API; but even after 10 years and the Adobe acquisition, not the equation editor I was hired to do.
For further evidence, remember that what (once) saved Apple was the the Jobs-driven pair of Macintosh and Apple LaserWriter (the first PostScript printer). This combination sparked the desktop publishing revolution, as it allowed the masses to get typographically reasonable output semi-affordably. He made both of these devices happen, and good typography was a core goal.