[Android] Nome delle applicazioni

[fermat]

ciao!
ho notato che nell'emulatore l'applicazione pernde il nome che ho dato all'Activity che viene lanciata di default.
volevo sapere se era possibile impostare un altro nome.
nel file strings.xml ho questo:

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <string name="app_name">MiaApp</string>
    <string name="first_activity">Collection</string>
    <string name="second_activity">News</string>
    <string name="third_activity">Newsletter</string>
</resources>

questo invece il manifest:

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.mattepuffo"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk android:minSdkVersion="10" />

    <uses-permission android:name="android.permission.INTERNET" />

    <application
        android:icon="@drawable/company"
        android:label="@string/app_name" >
        <activity
            android:name=".CollectionActivity"
            android:label="@string/first_activity" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity
            android:name=".NewsActivity"
            android:label="@string/second_activity" >
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </activity>
        <activity
            android:name=".NewsletterActivity"
            android:label="@string/third_activity" >
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </activity>
    </application>

</manifest>