While driving back from the Scottish Highlands to the South of England, I noticed something annoying about the Maps application for Android – when you pick out a route via the ‘Directions’ feature, all is well and good until you enter an area with no cell reception. At this point, you’re screwed.

I know it’s impossible to expect Google to preload hundreds of megabytes of map data on to your phone (you know, those pesky storage restrictions and all), but how about this: after Maps provides the directions for your route in text form, and you click ‘Show on map’, Maps could pop up an option (this could also be a configurable setting) asking if you want to preload map data.

My crappy mock-up of the prompt made on my netbook with a trackpad.

If you choose yes, it downloads the map data from Google’s servers for the planned route and caches it to your SD card. If existing map data is present that overlaps, it uses that after checking to make sure it’s up-to-date.

Probably a long shot that something like this could ever be implemented, but it would make life for those using their Android device as a Sat Nav so much easier, especially if you’re going on a long trip.