The article is a bit confusing as the author may have missed that many of the current smartphones already come with MEMS barometric altitude sensors. Well, but

The article is a bit confusing as the author may have missed that many of the current smartphones already come with MEMS barometric altitude sensors. Well, but he was nice enough to link the original article, unfortunately it is paywalled. http://scitation.aip.org/content/aip/journal/apl/103/14/10.1063/1.4824027 http://scitation.aip.org/content/aip/journal/apl/103/14/10.1... The paper reports a new type of pressure sensor which uses a cantilever with a tiny airgap instead of a diaphragm. Sounds interesting.