Hello,
Sometimes ago I discovered a fantastic navigation software (born and very used for gliders in world-class competition too, but also good for our use). It's name is LK8000,open source, fully configurable. It has replaced anything else in my cockpit (I can define, finally, all my airspaces, waypoints and so on as I like)
It can be loaded on any Windows CE PNA (or mini PC or tablet with Windows). No Android or iOS.(Windows CE in embedded use like this is extremely stable, and most of the car navigators are based on it. I have smartphone and tablet too, but a dedicated device for navigation is better IMHO)
A support forum (in English, of course) can be found here: http://www.postfrontal.com/forum/default.asp?CAT_ID=11. I'm happy to answer here, but I'm not in the development team, so it's the best information and Q/A source. On he forum you can find too the latest development version, which are anyway very stable and has further very interesting new features.
No advertising, no hidden tricks.
You can find it here: http://www.lk8000.it
Youtube tutorial channel: http://www.youtube.com/user/LK8000TEAM
Some screen capture:
The team is searching volunteers too to develop furtherly the GA section. Anyone interested/available here?
Ciao,
max