--- /dev/null
+<para>
+ This format is the Mapbar navigation programs used on phones such as
+ the Sonim XP3300 popular in China.
+ The files are found on the sd card in /mapbar/userdata/tracks.
+ This format just logs track point by latitude and longitude; no time
+ information is available.
+</para>
+<para>
+This was implemented by analyzing data from a Sonin SoninXp3300,
+software version: 3.73.47.39836, data version: B29.
+</para>
+<para>
+The following devices of using mapbar navigation are supported. Other
+devices with using mapbar navigation maybe be supported, but not have
+not been tested:
+<simplelist columns="1">
+<member>Sonim Xp3300(China version)</member>
+</simplelist>
+</para>