PlayBook, 2.1OS, spring, 2014: Today, what's considered a good (the best?) GPS nav software for en-route driving.
The basic 'must have' features would be:
1) Suspends the PB screen-blackouts at the 5 minute intervals
2) Can-do Voice turn-by-turn directions
3) Ability to save and easily retrieve destinations....HOME, etc
etc, in a manner similar to what my dedicated Garmin GPS does.

If you recommend a PB app, please be specific...Today, there are maybe 20 GOOGLE-based apps to choose from.
FYI, I've tried OsmAnd; Launching it, saving a destination to memory and retrieving it from memory are NOT user-friendly.
I've tried two other apps. Their performance was not memorable.