Changing default CDD to 2.2.

Change-Id: Id622dcd0f60868bea3be64871267db4f3030cfaa
diff --git a/pdk/docs/compatibility/index.jd b/pdk/docs/compatibility/index.jd
index 55be052..3664693 100644
--- a/pdk/docs/compatibility/index.jd
+++ b/pdk/docs/compatibility/index.jd
@@ -12,8 +12,8 @@
 them.</p>
 <p>These pages describe the Android Compatibility Program and how to get
 access to compatibility information and tools. The latest version of the
-Android source code and compatibility program is 2.1, which roughly
-corresponded to the Eclair branch.</p>
+Android source code and compatibility program is 2.2, which roughly
+corresponded to the FroYo branch.</p>
 
 
 <h2>Why build compatible Android devices?</h2>