I will repost Adam's post here:
Let me reveal a bit of "kitchen secrets" here.
On Mac OS X, one of the principal reasons for the stability problems is the fact that the application is running in the Rosetta environment, which translates the PowerPC code into Intel code. That environment is not completely stable. So the only solution was to move the code from PowerPC to Intel, which turned out to be more difficult than we originally planned for various reasons: the original code was created in the PowerPlant/Metroworks environment for Mac OS 9, and then moved to Mac OS X using Carbon. Apple XCode was not around when we first developed FontLab for Mac. Unfortunately, PowerPlant/Metroworks was practically discontinued because they sold their Intel compiler to a different company a few months before Apple announced their plans to move Mac OS X to Intel (one of the worst business decisions in the software industry I've heard of, the Metroworks Intel sale, that is).
FontLab Studio is a complex application, and we're a small company (about 10 people) with limited resources. Some of our Mac developers got bored with working on font editors and left the company to try something new (developing iPhone and iPad apps). We hired some new people, but they weren't any good, so we let them go. Then, about 1.5 years ago, we hired a new team, but we were not sure how well they would manage something as important as FontLab Studio, so we put them on the Fontographer 5 project, which was a bit more experimental (and, in a way, smaller in extent). Among others, that project was a test for the new team, and it worked very well. We're very happy with Fontographer 5, the developers delivered what they promised and the result is a fast and stable application.
So we gave the team the task of rebuilding FontLab Studio for Mac Intel, while also adding some new features and fixing some bugs in the "core" code (which is shared between Mac and Windows).
There will be a new version of FontLab Studio (version 5.5) for Windows and for Mac OS X this year. The project is finally well under way, and good people are working on it. Personally, I'm very excited about it. I agree that a new version is long overdue, and I hope that the users will be pleased with the results.
Best regards,
Adam Twardoch
Fontlab Ltd.
source:
http://typophile.com/node/80762#comment-459572