Doc change: edits and fixes to data binding guide.

Change-Id: Iaef989bd48a99294e2032656653e71ef93313687
diff --git a/docs/html/develop/index.jd b/docs/html/develop/index.jd
index 17db9e5..bbd2f71 100644
--- a/docs/html/develop/index.jd
+++ b/docs/html/develop/index.jd
@@ -97,7 +97,7 @@
 <section class="dac-section dac-gray"><div class="wrap">
   <h1 class="dac-section-title">Ubiquitous computing on Android</h1>
   <div class="dac-section-subtitle">
-    Opening up new stuff.
+    A great experience for your users across devices. 
   </div>
   <div class="resource-widget resource-flow-layout col-16"
        data-query="collection:develop/landing/ubicomp"