MEMS consumption in mobile handsets reached $157 mln in 2005, and by 2010, consumption will exceed $1 bln, reports In-Stat. In addition to the microphones and bulk acoustic resonators that have dominated the MEMS market to date, there are emerging opportunities for inertial sensors (principally accelerometers) and several types of RF components including band/mode switches, matching elements (such as digital varactors) and oscillators.