I was mulling transferring my mathematics notes from latex to mathml and that led to wondering whether there exists a suitable m17n map to enter math.
I
found and modified one - thanks to Urs (cc-ed). I didn't want the $/@ state changes in the original file as it is easy enough to switch to and from any given input method using shortcut keys (I use ibus + ubnutu 12.04).
Can you please add this to the package, Kenichi?