1.0 link Rainbow Dash Network http://rainbowdash.net/ Cerulean Spark (ceruleanspark) http://rainbowdash.net/ceruleanspark http://rainbowdash.net/notice/2931671 @<span class="vcard"><a href="http://rainbowdash.net/user/1975" class="url" title="Scoot"><span class="fn nickname">scoot</span></a></span> The magnetometer is actually what the device uses as its internal compass, rather than using the comparatively complex GPS module just to find out what direction you're facing.