People who tried this version on OS X 10.7 have reported no issues, if you are using an earlier version of the Converter and encounter problems in Lion, please upgrade to version 0.8.4b.
Meanwhile, I continue to work on a release for a full "Lion" version. Support will be gradually added for converting Unicode to other fonts (including Hindi fonts) continues.
The last stable version, 0.8 already has support for converting following fonts:
- Preeti, to and from, Unicode
- Kantipur, to and from, Unicode
- Fontasy Himal, to, Unicode