- The Dutch Type Library and URW++ Design & Development are offering DTL
OTMaster, a new font editor specifically for the OpenType font format.
It is available for Mac OS X (both Universal and Intel), Windows, and
Linux. Includes manual in PDF format.
It is offered free in the "light" version.
The inability to modify OpenType fonts with consistent satisfactory
results has been a stumbling block for the last several years. Perhaps
this may be a solution. I have not yet had a chance to test the software.