The .lmx file format is a XML landmark format used by Nokia Maps. It can be sent via e-mail, MMS, etc., and lets you add metadata to GPS POIs.
<?xml version="1.0" encoding="UTF-8"?> <lm:lmx xmlns:lm="http://www.nokia.com/schemas/location/landmarks/1/0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.nokia.com/schemas/location/landmarks/1/0/lmx.xsd"> <lm:landmarkCollection> <lm:landmark> <lm:name>A Vida Portuguesa</lm:name> <lm:description>A local shop for local people.</lm:description> <lm:coordinates> <lm:latitude>38.7100765295327</lm:latitude> <lm:longitude>-9.14113696664572</lm:longitude> </lm:coordinates> <lm:addressInfo> <lm:city>Lisboa</lm:city> <lm:country>Portugal</lm:country> <lm:street>Rua Anchieta 11</lm:street> <lm:postalCode>1200</lm:postalCode> <lm:state></lm:state> <lm:phoneNumber></lm:phoneNumber> </lm:addressInfo> </lm:landmark> </lm:landmarkCollection> </lm:lmx>