diff --git a/api/current.xml b/api/current.xml
index 54ba4a333f81e..7c38aacc0d093 100644
--- a/api/current.xml
+++ b/api/current.xml
@@ -16663,7 +16663,7 @@
  visibility="public"
 >
 </field>
-<field name="Theme_Holo_NoTitleBar"
+<field name="Theme_Holo_NoActionBar"
  type="int"
  transient="false"
  volatile="false"
@@ -16674,7 +16674,7 @@
  visibility="public"
 >
 </field>
-<field name="Theme_Holo_NoTitleBar_Fullscreen"
+<field name="Theme_Holo_NoActionBar_Fullscreen"
  type="int"
  transient="false"
  volatile="false"
@@ -16718,7 +16718,7 @@
  visibility="public"
 >
 </field>
-<field name="Theme_Light_Holo_NoTitleBar"
+<field name="Theme_Light_Holo_NoActionBar"
  type="int"
  transient="false"
  volatile="false"
@@ -16729,7 +16729,7 @@
  visibility="public"
 >
 </field>
-<field name="Theme_Light_Holo_NoTitleBar_Fullscreen"
+<field name="Theme_Light_Holo_NoActionBar_Fullscreen"
  type="int"
  transient="false"
  volatile="false"
diff --git a/core/java/android/content/pm/PackageParser.java b/core/java/android/content/pm/PackageParser.java
index 155c86cf9f0e7..7c6e142c4f4f3 100644
--- a/core/java/android/content/pm/PackageParser.java
+++ b/core/java/android/content/pm/PackageParser.java
@@ -1494,12 +1494,18 @@ public class PackageParser {
             ai.nonLocalizedLabel = v.coerceToString();
         }
 
+        int defaultTheme = 0;
+        if (owner.applicationInfo.targetSdkVersion >= android.os.Build.VERSION_CODES.HONEYCOMB) {
+            // As of honeycomb, the default application theme is holographic.
+            defaultTheme = android.R.style.Theme_Holo;
+        }
+
         ai.icon = sa.getResourceId(
                 com.android.internal.R.styleable.AndroidManifestApplication_icon, 0);
         ai.logo = sa.getResourceId(
                 com.android.internal.R.styleable.AndroidManifestApplication_logo, 0);
         ai.theme = sa.getResourceId(
-                com.android.internal.R.styleable.AndroidManifestApplication_theme, 0);
+                com.android.internal.R.styleable.AndroidManifestApplication_theme, defaultTheme);
         ai.descriptionRes = sa.getResourceId(
                 com.android.internal.R.styleable.AndroidManifestApplication_description, 0);
 
diff --git a/core/java/android/os/Build.java b/core/java/android/os/Build.java
index 8624467755a1f..9268cd17f0900 100644
--- a/core/java/android/os/Build.java
+++ b/core/java/android/os/Build.java
@@ -206,7 +206,8 @@ public class Build {
          * <p>Applications targeting this or a later release will get these
          * new changes in behavior:</p>
          * <ul>
-         * <li> Alerts UI change?
+         * <li> The default theme for applications is now dark holographic:
+         *      {@link android.R.style#Theme_Holo}.
          * </ul>
          */
         public static final int HONEYCOMB = CUR_DEVELOPMENT;
diff --git a/core/res/res/values/public.xml b/core/res/res/values/public.xml
index ea5c1586d7846..a3367e383649c 100644
--- a/core/res/res/values/public.xml
+++ b/core/res/res/values/public.xml
@@ -1347,18 +1347,12 @@
        the base class. -->
   <public type="layout" name="list_content" />
 
-  <!-- A dark holographic theme. -->
   <public type="style" name="Theme.Holo" />
-  <!-- A light holographic theme. -->
   <public type="style" name="Theme.Light.Holo" />
-  <!-- Variant of the holographic (dark) theme with no title bar -->
-  <public type="style" name="Theme.Holo.NoTitleBar" />
-  <!-- Variant of the holographic (dark) theme that has no title bar and fills the entire screen -->
-  <public type="style" name="Theme.Holo.NoTitleBar.Fullscreen" />
-  <!-- Variant of the holographic light theme with no title bar -->
-  <public type="style" name="Theme.Light.Holo.NoTitleBar" />
-  <!-- Variant of the holographic light theme that has no title bar and fills the entire screen -->
-  <public type="style" name="Theme.Light.Holo.NoTitleBar.Fullscreen" />
+  <public type="style" name="Theme.Holo.NoActionBar" />
+  <public type="style" name="Theme.Holo.NoActionBar.Fullscreen" />
+  <public type="style" name="Theme.Light.Holo.NoActionBar" />
+  <public type="style" name="Theme.Light.Holo.NoActionBar.Fullscreen" />
 
   <public type="string" name="selectTextMode" id="0x01040030" />
 </resources>
diff --git a/core/res/res/values/themes.xml b/core/res/res/values/themes.xml
index c78705b415c3b..9f6c1ea73463f 100644
--- a/core/res/res/values/themes.xml
+++ b/core/res/res/values/themes.xml
@@ -575,35 +575,48 @@
         <item name="android:windowActionModeOverlay">true</item>
     </style>
     
-    <!-- New Honeycomb holographic theme. Dark version -->
+    <!-- New Honeycomb holographic theme. Dark version.  The widgets in the
+         holographic theme are translucent on their brackground, so applications
+         must ensure that any background they use with this theme is itself
+         dark; otherwise, it will be difficult to see the widgets.  The new
+         UI style also includes a full action bar by default. -->
     <style name="Theme.Holo">
         <item name="editTextBackground">@android:drawable/edit_text_holo_dark</item>
         <item name="editTextColor">?android:attr/textColorPrimary</item>
+        <item name="android:windowActionBar">true</item>
     </style>
 
-    <!-- New Honeycomb holographic theme. Light version -->
+    <!-- New Honeycomb holographic theme. Light version.  The widgets in the
+         holographic theme are translucent on their brackground, so applications
+         must ensure that any background they use with this theme is itself
+         light; otherwise, it will be difficult to see the widgets.  The new
+         UI style also includes a full action bar by default. -->
     <style name="Theme.Light.Holo">
         <item name="editTextBackground">@android:drawable/edit_text_holo_light</item>
     </style>
 
-    <!-- Variant of the holo (dark) theme with no title bar -->
-    <style name="Theme.Holo.NoTitleBar">
+    <!-- Variant of the holographic (dark) theme with no action bar. -->
+    <style name="Theme.Holo.NoActionBar">
+        <item name="android:windowActionBar">false</item>
         <item name="android:windowNoTitle">true</item>
     </style>
     
-    <!-- Variant of the holo (dark) theme that has no title bar and fills the entire screen -->
-    <style name="Theme.Holo.NoTitleBar.Fullscreen">
+    <!-- Variant of the holographic (dark) theme that has no title bar and fills
+         the entire screen -->
+    <style name="Theme.Holo.NoActionBar.Fullscreen">
         <item name="android:windowFullscreen">true</item>
         <item name="android:windowContentOverlay">@null</item>
     </style>
 
-    <!-- Variant of the holo light theme with no title bar -->
-    <style name="Theme.Light.Holo.NoTitleBar">
+    <!-- Variant of the holographic light theme with no action bar -->
+    <style name="Theme.Light.Holo.NoActionBar">
+        <item name="android:windowActionBar">false</item>
         <item name="android:windowNoTitle">true</item>
     </style>
 
-    <!-- Variant of the holo light theme that has no title bar and fills the entire screen -->
-    <style name="Theme.Light.Holo.NoTitleBar.Fullscreen">
+    <!-- Variant of the holographic light theme that has no title bar and fills
+         the entire screen -->
+    <style name="Theme.Light.Holo.NoActionBar.Fullscreen">
         <item name="android:windowFullscreen">true</item>
         <item name="android:windowContentOverlay">@null</item>
     </style>