OpenMooCow
From Openmoko
Introduction
OpenMooCow reads information out of your accelerometers. Now, if you turn the phone upside down and back again, it "moos" like one of the little toys you might know... Nevertheless, it's great fun to try it out!FreeRunner mooes on flip.
Installation
Package and source download from http://www.srcf.ucam.org/~taw27/openmoko/openmoocow/
For install:
opkg install http://www.srcf.ucam.org/~taw27/openmoko/openmoocow/openmoocow_0.2-r2_armv4t.ipk