Many OSX users have complained that OSX package of Synfig have ridiculous size (and because of that some users even had problems with getting it to launch). So, I have spent several nights on that problem and applied some magic to our build system.
And result? Now the package is 5 times (!) smaller than before!
All other characteristics and functionality should remains the same, though I am encourage everyone to make sure everything is works as before. So, go ahead and give it some testing!
P.S. Your feedback is appreciated in this thread.