As mentioned recently I've been playing with templates and the new
internal syntax. This has resulted in the package xfrac, which is a first
attempt at a generic interface for producing split level fractions in
text, as this is extremely font dependent. Also it works in math mode,
solving some of the problems seen there with the current available
packages ( = nicefrac).
The package (v0.11) is now underway to ctan, but meanwhile it can also be
downloaded from <http://www.student.cbs.dk/moho01ab/xfrac/>