id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
151	smart tile preloading	Martin Kolman	Martin Kolman	" * while moving
  * in direction of travel
  * speed triggers ?
 
 * while not moving/moving slowly
  * 1-2 levels up and down from current position
  * slowly (sequentially ?) tiles around the currently visible area
   * like this, there would be not downloading tiles once the user starts moving/zooming/panning
   * should be aborted once significant moving/panning starts
 
 * should this be ON by default ?
  * quite a few not-needed tiles will be downloaded
  * larger data transfers"	enhancement	new	minor		gps