+ Done
+
+ *) Select satellite imaging mode
+
+ Done
+
+ *) Deal with long bluetooth list. Currently, a list longer than
+ the screen makes it impossible to use entries off the bottom.
+
+ Done
+
+ *) Pickle/unpickle state instead of reloading entire history from
+ file. Current restart time is lengthy.
+
+ Done
+
+ *) Offline maps
+
+ Done
+
+ *) Multi-tracker management
+
+ Done
+
+ *) Provide units for age field, turn red if old
+
+ Done
+