diff --git a/app/build.gradle b/app/build.gradle
index 57b585b..9695397 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -10,8 +10,8 @@
         applicationId "net.named_data.nfd"
         minSdkVersion 15
         targetSdkVersion 19
-        versionCode 2001
-        versionName "0.2.1"
+        versionCode 3005
+        versionName "0.3.4"
     }
     compileOptions {
         sourceCompatibility JavaVersion.VERSION_1_7
@@ -45,7 +45,7 @@
     splits {
         abi {
             enable true // enable ABI split feature to create one APK per ABI
-            universalApk true //generate an additional APK that targets all the ABIs
+            universalApk false // don't generate an additional APK that targets all the ABIs
         }
     }
 
@@ -110,12 +110,14 @@
     return ndk_build
 }
 
+
 def getNdkDir() {
     if (System.env.ANDROID_NDK_ROOT != null)
         return System.env.ANDROID_NDK_ROOT
 
     Properties properties = new Properties()
     properties.load(project.rootProject.file('local.properties').newDataInputStream())
+
     def ndk_dir = properties.getProperty('ndk.dir', null)
     if (ndk_dir == null) {
         throw new GradleException("NDK location not found. Define location with ndk.dir in the local.properties file or with an ANDROID_NDK_ROOT environment variable.")
@@ -153,3 +155,37 @@
     compile 'net.named-data.jndn-xx:jndn-xx-util:0.0.1'
     compile 'joda-time:joda-time:2.7'
 }
+
+Properties properties = new Properties()
+properties.load(project.rootProject.file('local.properties').newDataInputStream())
+
+if (properties['keystore'] == null || properties['keystore.password'] == null ||
+    properties['keystore.key.alias'] == null || properties['keystore.key.password'] == null) {
+    println("Cannot sign .apk: specify keystore, keystore.password, keystore.key.alias, and keystore.key.password in local.properties.")
+}
+else {
+    android {
+        signingConfigs {
+            release {
+                storeFile file(properties['keystore'])
+                storePassword properties['keystore.password']
+                keyAlias properties['keystore.key.alias']
+                keyPassword properties['keystore.key.password']
+            }
+        }
+        buildTypes {
+            release {
+                signingConfig signingConfigs.release
+            }
+        }
+    }
+}
+
+if (properties['google-play'] != null) {
+    apply plugin: 'net.named-data.playground.play'
+
+    play {
+        track = 'alpha'
+        jsonFile = file(properties['google-play'])
+    }
+}
diff --git a/app/src/main/play/contactEmail b/app/src/main/play/contactEmail
new file mode 100644
index 0000000..e406e99
--- /dev/null
+++ b/app/src/main/play/contactEmail
@@ -0,0 +1 @@
+info@named-data.net
\ No newline at end of file
diff --git a/app/src/main/play/contactPhone b/app/src/main/play/contactPhone
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/app/src/main/play/contactPhone
diff --git a/app/src/main/play/contactWebsite b/app/src/main/play/contactWebsite
new file mode 100644
index 0000000..b2845c5
--- /dev/null
+++ b/app/src/main/play/contactWebsite
@@ -0,0 +1 @@
+http://named-data.net
\ No newline at end of file
diff --git a/app/src/main/play/defaultLanguage b/app/src/main/play/defaultLanguage
new file mode 100644
index 0000000..f2b0341
--- /dev/null
+++ b/app/src/main/play/defaultLanguage
@@ -0,0 +1 @@
+en-US
\ No newline at end of file
diff --git a/app/src/main/play/en-US/listing/fulldescription b/app/src/main/play/en-US/listing/fulldescription
new file mode 100644
index 0000000..37cd1bf
--- /dev/null
+++ b/app/src/main/play/en-US/listing/fulldescription
@@ -0,0 +1,3 @@
+NFD is an open and free software package licensed under GPL 3.0 license and is the centerpiece of our commitment to making NDN's core technology open and free to all Internet users and developers. The main design goal of NFD is to support diverse experimentation of NDN technology. The design emphasizes modularity and extensibility to allow easy experiments with new protocol features, algorithms, new applications. We have not fully optimized the code for performance. The intention is that performance optimizations are one type of experiments that developers can conduct by trying out different data structures and different algorithms; over time, better implementations may emerge within the same design framework.
+
+NFD is developed by a community effort. Although the first release was mostly done by the members of NSF-sponsored NDN project team, it already contains significant contributions from people outside the project team.  We strongly encourage participation from all interested parties, since broader community support is key for NDN to succeed as a new Internet architecture.
\ No newline at end of file
diff --git a/app/src/main/play/en-US/listing/shortdescription b/app/src/main/play/en-US/listing/shortdescription
new file mode 100644
index 0000000..8531243
--- /dev/null
+++ b/app/src/main/play/en-US/listing/shortdescription
@@ -0,0 +1 @@
+Network forwarder for the Named Data Networking (NDN) protocol
\ No newline at end of file
diff --git a/app/src/main/play/en-US/listing/title b/app/src/main/play/en-US/listing/title
new file mode 100644
index 0000000..546e521
--- /dev/null
+++ b/app/src/main/play/en-US/listing/title
@@ -0,0 +1 @@
+NDN Forwarding Daemon (NFD)
\ No newline at end of file
diff --git a/app/src/main/play/en-US/listing/video b/app/src/main/play/en-US/listing/video
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/app/src/main/play/en-US/listing/video