Doc change: update Mobile Ads to reflect new DFP, location, and other support. Update a few references to froyo support in gcore.

Change-Id: I3bae04277329ff0db38ba530c0d61ddbac675d19
diff --git a/docs/html/google/index.jd b/docs/html/google/index.jd
index 37a35fc..b743b66 100644
--- a/docs/html/google/index.jd
+++ b/docs/html/google/index.jd
@@ -30,7 +30,7 @@
 cloud messaging.</p>
   <p>Although these Google services are not included in the Android platform, they are
   supported by most Android-powered devices. When using these services, you can
-  distribute your app on Google Play to all devices running Android 2.2
+  distribute your app on Google Play to all devices running Android 2.3
   or higher, and some services support even more devices.</p>
 </div>
 </div>