Prepare ICS release.

-new version numbers
-new system requirements

Bug:4445289
Change-Id: I759e548d7e292cd44f6b7084250e5c648d250e12
diff --git a/src/source/overview.md b/src/source/overview.md
index b42c436..34ef955 100644
--- a/src/source/overview.md
+++ b/src/source/overview.md
@@ -23,9 +23,14 @@
 
 The links below will navigate you away from this site.
 
+## [Android 4.0](http://developer.android.com/sdk/android-4.0-highlights.html) ##
+
+Android 4.0 corresponded to the "IceCreamSandwich" milestone branch, and has an API level of 14.
+
 ## [Android 2.3](http://developer.android.com/sdk/android-2.3-highlights.html) ##
 
 Android 2.3 corresponded to the "Gingerbread" milestone branch, and has an API level of 9.
+In versions 2.3.3 and higher, the API level is 10.
 
 ## [Android 2.2](http://developer.android.com/sdk/android-2.2-highlights.html) ##