diff --git a/cocos2dx/CCConfiguration.cpp b/cocos2dx/CCConfiguration.cpp
index af9ff6c13c..a102faea19 100644
--- a/cocos2dx/CCConfiguration.cpp
+++ b/cocos2dx/CCConfiguration.cpp
@@ -60,19 +60,19 @@ bool CCConfiguration::init(void)
 	m_pDefaults = CCDictionary::create();
 	m_pDefaults->retain();
 
-	m_pDefaults->setObject( CCString::create( cocos2dVersion() ), "cocos2d.version");
+	m_pDefaults->setObject( CCString::create( cocos2dVersion() ), "cocos2d.x.version");
 
 
 #if CC_ENABLE_PROFILERS
-	m_pDefaults->setObject( CCBool::create(true), "cocos2d.compiled_with_profiler");
+	m_pDefaults->setObject( CCBool::create(true), "cocos2d.x.compiled_with_profiler");
 #else
-	m_pDefaults->setObject( CCBool::create(false), "cocos2d.compiled_with_profiler");
+	m_pDefaults->setObject( CCBool::create(false), "cocos2d.x.compiled_with_profiler");
 #endif
 
 #if CC_ENABLE_GL_STATE_CACHE == 0
-	m_pDefaults->setObject( CCBool::create(false), "cocos2d.compiled_with_gl_state_cache");
+	m_pDefaults->setObject( CCBool::create(false), "cocos2d.x.compiled_with_gl_state_cache");
 #else
-	m_pDefaults->setObject( CCBool::create(true), "cocos2d.compiled_with_gl_state_cache");
+	m_pDefaults->setObject( CCBool::create(true), "cocos2d.x.compiled_with_gl_state_cache");
 #endif
 
 	return true;
@@ -220,7 +220,7 @@ bool CCConfiguration::supportsShareableVAO(void) const
 //
 // generic getters for properties
 //
-const char *CCConfiguration::getCString( const char *key ) const
+const char *CCConfiguration::getCString( const char *key, const char *default_value ) const
 {
 	CCObject *ret = m_pDefaults->objectForKey(key);
 	if( ret ) {
@@ -231,12 +231,11 @@ const char *CCConfiguration::getCString( const char *key ) const
 	}
 
 	// XXX: Should it throw an exception ?
-	CCLOG("Key not found: '%s'", key );
-	return NULL;
+	return default_value;
 }
 
 /** returns the value of a given key as a boolean */
-bool CCConfiguration::getBool( const char *key ) const
+bool CCConfiguration::getBool( const char *key, bool default_value ) const
 {
 	CCObject *ret = m_pDefaults->objectForKey(key);
 	if( ret ) {
@@ -248,12 +247,11 @@ bool CCConfiguration::getBool( const char *key ) const
 	}
 
 	// XXX: Should it throw an exception ?
-	CCLOG("Key not found: '%s'", key );
-	return false;
+	return default_value;
 }
 
 /** returns the value of a given key as a double */
-double CCConfiguration::getNumber( const char *key ) const
+double CCConfiguration::getNumber( const char *key, double default_value ) const
 {
 	CCObject *ret = m_pDefaults->objectForKey(key);
 	if( ret ) {
@@ -270,8 +268,7 @@ double CCConfiguration::getNumber( const char *key ) const
 	}
 
 	// XXX: Should it throw an exception ?
-	CCLOG("Key not found: '%s'", key );
-	return 0.0;
+	return default_value;
 }
 
 CCObject * CCConfiguration::getObject( const char *key ) const
diff --git a/cocos2dx/CCConfiguration.h b/cocos2dx/CCConfiguration.h
index 5b8b0bbabb..8ac2a70ac7 100644
--- a/cocos2dx/CCConfiguration.h
+++ b/cocos2dx/CCConfiguration.h
@@ -106,14 +106,17 @@ public:
 
     bool init(void);
 
-	/** returns the value of a given key as a string */
-	const char* getCString( const char *key ) const;
+	/** returns the value of a given key as a string.
+	 If the key is not found, it will return the default value */
+	const char* getCString( const char *key, const char *default_value=NULL ) const;
 
-	/** returns the value of a given key as a boolean */
-	bool getBool( const char *key ) const;
+	/** returns the value of a given key as a boolean.
+	 If the key is not found, it will return the default value */
+	bool getBool( const char *key, bool default_value=false ) const;
 
-	/** returns the value of a given key as a double */
-	double getNumber( const char *key ) const;
+	/** returns the value of a given key as a double.
+	 If the key is not found, it will return the default value */
+	double getNumber( const char *key, double default_value=0.0 ) const;
 
 	/** returns the value of a given key as a double */
 	CCObject * getObject( const char *key ) const;
diff --git a/samples/Cpp/TestCpp/Classes/ConfigurationTest/ConfigurationTest.cpp b/samples/Cpp/TestCpp/Classes/ConfigurationTest/ConfigurationTest.cpp
index 80ab32d74a..0e06ffac6f 100644
--- a/samples/Cpp/TestCpp/Classes/ConfigurationTest/ConfigurationTest.cpp
+++ b/samples/Cpp/TestCpp/Classes/ConfigurationTest/ConfigurationTest.cpp
@@ -6,11 +6,13 @@
 TESTLAYER_CREATE_FUNC(ConfigurationLoadConfig);
 TESTLAYER_CREATE_FUNC(ConfigurationQuery);
 TESTLAYER_CREATE_FUNC(ConfigurationInvalid);
+TESTLAYER_CREATE_FUNC(ConfigurationDefault);
 
 static NEWTESTFUNC createFunctions[] = {
     CF(ConfigurationLoadConfig),
 	CF(ConfigurationQuery),
-	CF(ConfigurationInvalid)
+	CF(ConfigurationInvalid),
+	CF(ConfigurationDefault)
 };
 
 static int sceneIdx=-1;
@@ -186,3 +188,37 @@ std::string ConfigurationInvalid::subtitle()
 {
     return "Loading an invalid config file";
 }
+
+//------------------------------------------------------------------
+//
+// ConfigurationDefault
+//
+//------------------------------------------------------------------
+void ConfigurationDefault::onEnter()
+{
+    ConfigurationBase::onEnter();
+
+	const char *c_value = CCConfiguration::sharedConfiguration()->getCString("invalid.key", "no key");
+	if( strcmp(c_value, "no key") != 0 )
+		CCLOG("1. Test failed!");
+	else
+		CCLOG("1. Test OK!");
+
+	bool b_value = CCConfiguration::sharedConfiguration()->getBool("invalid.key", true);
+	if( ! b_value )
+		CCLOG("2. Test failed!");
+	else
+		CCLOG("2. Test OK!");
+
+	double d_value = CCConfiguration::sharedConfiguration()->getNumber("invalid.key", 42.42);
+	if( d_value != 42.42 )
+		CCLOG("3. Test failed!");
+	else
+		CCLOG("3. Test OK!");
+
+}
+
+std::string ConfigurationDefault::subtitle()
+{
+    return "Tests defaults values";
+}
diff --git a/samples/Cpp/TestCpp/Classes/ConfigurationTest/ConfigurationTest.h b/samples/Cpp/TestCpp/Classes/ConfigurationTest/ConfigurationTest.h
index 7f2cbc1e93..b5da1be65a 100644
--- a/samples/Cpp/TestCpp/Classes/ConfigurationTest/ConfigurationTest.h
+++ b/samples/Cpp/TestCpp/Classes/ConfigurationTest/ConfigurationTest.h
@@ -52,4 +52,12 @@ public:
     virtual std::string subtitle();
 };
 
+class ConfigurationDefault : public ConfigurationBase
+{
+public:
+    virtual void onEnter();
+    virtual std::string subtitle();
+};
+
+
 #endif // __CONFIGURATIONTEST_H__