I have an app in which I recently integrated MapView, and It's been working 
with the debug keystore ever since i added the activity showing the 
MapView, so I thought the api key bit was easy enough.
Upon signing with my release key, I find that the MapView shows only a grey 
grid. I read somewhere that It's because you have to publish the app to 
Google Play in order for anything to show up on the map,
so I did, and it did not help.

I just tried creating a blank MapView app with the 
\android-sdk\add-ons\addon-google_apis-google-10\samples, and signed that 
with the same release api key. It worked.
And it works with the debug api key on the full application, too, just not 
the release api key.
To make sure, I created an alternative release key too, based on the same 
keygen alg that the original was created from, I call it "alt". It exhibits 
the same results as my release key.

                    dbg | rel | alt
NewsApp             yes |  no |  no
HelloMapView!       yes | yes | yes

Is it perhaps because one of the apps is associated with a com.app.id on 
Google Play,
that the issue doesn not (yet) occur with the HelloMapView app?
Otherwise, I find it really hard to make anything useful of this...
I'll try cleaning the project and rebuilding.

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