Magnetometers are appearing in
mobile phones. The
HTC HD2,
Nokia C7-00,
HTC Dream,
HTC Evo,
HTC Wildfire,
Apple iPhone 3GS,
iPhone 4 and
iPad,
Motorola Droid[6],
Motorola Quench,
Nokia N97, Nokia
E72, Nokia
N8, Nokia
E5,
Xperia X10,
Samsung i8910,
Samsung Wave S8500,
Samsung Galaxy S,
Nexus One and the
HTC Hero all have a magnetometer and come with compass apps for showing direction.
[7][8]
Researchers in
Deutsche Telekom have used magnetometers embedded in those devices to perform touch-less 3d interaction around mobile device. Their interaction framework called
MagiTact tracks changes to the magnetic field around a cellphone to identify different gestures by a hand holding or wearing a magnet.
[9]