PHONE_STATE broadcast and 4.0.3

Anybody out there who has experience with android.intent.action.PHONE_STATE broadcasts and 4.0.3? I wrote this simple application that is just a receiver for this broadcast intent. It works beautifully on 2.2 but does not capture any broadcasts on a Nexus S with the official Google 4.0.3 firmware. The manifest has the permission (XML mangling because of the blog engine):

    [uses-permission android:name="android.permission.READ_PHONE_STATE"/]

and the receiver:

       [receiver android:name=".PhoneIntentReceiver"
            android:enabled="true"
            android:exported="true"]
            [intent-filter]
                [action android:name="android.intent.action.PHONE_STATE" /]
            [/intent-filter]

        [/receiver]

Is this a 4.0.3 bug?