From W3C: "Efficient XML Interchange, or EXI, is described as a very compact representation of information in XML (extensible markup language). EXI is so effic

From W3C: "Efficient XML Interchange, or EXI, is described as a very compact representation of information in XML (extensible markup language). EXI is so efficient that the W3C says it has been found to improve up to 100-fold the performance, network efficiency and power consumption of applications that use XML, including but not limited to consumer mobile apps. It is particularly useful on devices with low memory or low bandwidth." Link: http://www.w3.org/TR/2011/REC-exi-20110310/ http://www.w3.org/TR/2011/REC-exi-20110310/