Geosphere questions in GPS Posted January 4, 2010 I see people are talking about Geosphere so thought I'd check it out. A couple of questions. If a Geocaching.com premium membership is required to get access to GPX files, why do I also get GSAK to import the GPX files and re-export them as GPX files for Geosphere? Aren't I doing the same thing twice? ?!? Why do I need GSAK if I already have a membership to export GPX files from Geocaching.com? Essentially, yes. However, importing your GPX files into GSAK keeps a secondary database that is easy to maintain, filter and modify (for puzzle caches). A full size keyboard with a full size screen makes it a little easier. With Geosphere, it only contains the GPX files I install to it, so if I am in an area I wasn't expecting to have some spare time in and want to Geocache I can't really use Geosphere and so should purchase the Geocaching.com application, yes? Thanks! You can use the on-board GPS in Geosphere to create a PQ for your immediate area if you find yourself in caching area that you weren't expecting. Although, I have heard the gc.com app is easier in this respect it can be done with Geosphere. Hope that helps.