Core idea: voice nav for GPX files I want to be able to ride around in the mountains without looking down at the screen. So I'm working on a new app that will navigate a track and speak to you to tell you where to go. On the road, I've been pleased using Google Maps and just putting my phone in my pocket after starting navigation, and then listening to all the prompts via my Sena setup. I want to create a similar "no-screen vibe" for getting around in the dirt using GPX files. The concept is something is that it will say every so often something like "1.4 miles to waypoint, dead ahead". -The frequency of speaking would have to be adjustable. -A variety of "directional styles" could be coded. Like, "dead ahead" could be "12 o'clock", or "zero degrees". -Yes, voice synthesis works without any internet connection. Want to beta test it? I'll probably be ready to beta test this pretty soon. I used it driving in to work this morning, so, it's pretty close. If you want to participate in some beta testing, PM me an email address. Oh, it has to be a @gmail.com email address, that's how Android beta testing works. (I add the email addresses inside my Google Play store admin account for the app, and it lets those people access the 'unreleased' beta app.) I'm interested in getting ideas on how other people would use it. For me, I'm interested in dual sport rides. But, expand my horizons! Sorry, no plans for an iOS version. iOS folks need to go buy one of those used super tough and cheap Kyocera phones.