Although it is possible to find a place by entering gps coordinates, it is sometimes not possible to set it as destination. It doesn't simply have an option to build a route to that point (or to closest road). And when I try to change a point to closest road manually - I cannot do so - also there is no such functionality. Please allow changing destination from the destination details view directly. Now I have to go back, which moves map view onto my location, and then search for that point manually. Or at least when going back from location details, don't navigate back to my location

19 digits, are you crazy?

GPS accuracy
*The ninth decimal place is worth up to 110 microns: we are getting into the range of microscopy. For almost any conceivable application with earth positions, this is overkill and will be more precise than the accuracy of any surveying device.
*Ten or more decimal places indicates a computer or calculator was used and that no attention was paid to the fact that the extra decimals are useless. Be careful, because unless you are the one reading these numbers off the device, this can indicate low quality processing!

I have an idea, locating where I am by GPS and view the coordinates.

I would also like to be able to set "here" as a destination to which I can return later. Useful when I am at a place with no/unknown road names or addresses, and I want to be able to return to it. I saw the comments below, but I don't know how a naïve user can use them.

This already available.

This already available Since 2~3 years ago.

Also allow sending of GPS coordinates via text, social media, e-mail etc.

If you send a geo:lat,lng intent, it will work. (For example FF on Android can do this).

Or let Waze handle http://maps.google.com/maps intents.

But it would be nice to handle those entered into the search box as well.

Absolutely essential

I use an app to capture GPS coordinates once I reach a destination especially when I know/knew its major cross streets.

when the contact entry has only GPS coordinates I switch to MapQuest

:°|

Sometimes I'm only provided coordinates for a destination especially when the other person isn't using waze but instead a "here I am" app.