Seen on the MathWG mailing list:
"A Lucida OpenType font distribution is now available from TUG --
http://tug.org/lucida has documents, samples, and ordering information.
These new OpenType fonts contain many more characters than the Lucida
Type 1 fonts (which remain available, by the way). There is also a full
OpenType math font that works with LuaTeX and XeTeX, as well as non-TeX
However, the font are not free:
I'm closing all these font-specific meta bug since the main work has been done in bug 407059 and bug 947650. Remaining issues will be handled on the OpenType MATH bugs.
Once bug 1000879 is merged, one will be able to verify the initial OpenType MATH support with the MathML torture test: