Memory Pie is a little utility that sits on your icon bar and shows a
pie-chart of how your memory is distributed. The display updates as tasks
start up and quit, the module area extends, and other memory areas change
size. You can therefore see at a glance how much spare memory you have, and
how much memory is used for applications, module area, fonts etc. This is
considerably more useful than the utilities that just show you your free
memory.
   Based on Ian Jeffray's original version.