X11 font size in OSX Leopard
From MyWiki
Installed Gimp and Wireshark and found out that the default font size for X11 apps is huge on my MacBook 13". The cure:
defaults write org.x.X11 dpi -int 72
Ref: http://xquartz.macosforge.org/trac/wiki/X11-UsersFAQ#DefaultresolutiontoolowFontstoosmall