I personally favor GPL licenses, but they obviously don’t work with Apple’s licensing. At the time, LGPL ver 2 *kind of* could slide through *if* you distributed the source code itself so people could build new versions of the app (which is what I planned to do). LGPL 3 closed that loophole and expr was relicensed as LGPL 3 so here we are. I didn’t want to *assume* the original authors wanted to move away form the GPL that much, so LGPL seemed like a compromise. (Obviously, Apple’s policies are the real issue here.)

Anyway, if it’s the same BSD license as pd itself, we should be good … but don;t quote me on that this time. :P