Though i can't see whole of your code.But according to your above code i can't understand why you use
android:removed="@drawable/log_in" this line,it may cause problem(though i'm not sure).
Below code works fine in my case.Just after touching the edittext box, the keyboard comes up automatically for my case..
<linearlayout xmlns:android="http://schemas.android.com/apk/res/android">
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<edittext>
android:id="@+id/edittext"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
/>
</edittext></linearlayout>