Longhand can be downloaded for free. It has been tested on Mac OS X 10.5, but should also work on other versions of OS X. The current version is Longhand 2.5.0 and is compiled for Intel machines.

If you have a PowerPC computer download Longhand 2.4.0 at http://snurl.com/1ycwm or the full 2.4.0 URL:

http://yourlingua.googlepages.com/LonghandPowerPC.zip