I just received this from EA concerning this topic/ patch.
Thank you for contacting Rock Band warranty support.
.I have been researching this issue a bit and it would seem that perhaps Microsoft may have released the microphone a bit pre-maturely. There was supposed to be a patch coming out that would allow compatibility with all wireless microphones including the Lips mic, but Microsoft appears to have released the mic before such a patch has had a chance to be released. The original release of the microphone was supposed to coincide with the release of Beatles Rock Band , (9/09), but the mic was released around the middle of last month instead. Below is a link to a forum that discusses this on www.rockband.com;
I would imagine a patch will be released on or around 9/9 to allow the Microphones to work. I'm very sorry for any inconvenience and hopefully Harmonix and Microsoft get this straightened out very soon. If you have any further questions or concerns Joseph please let me know. Thank you very much!
The wireless microphones will come in handy. No more wires, you can move around freely without tripping on cords, and it will simply feel more like a band. I've been waiting for this update for a while now... so I can't wait!
--- |H|A|L|O| |3| My Anti-Drug --- 326 Rock Band DLC and counting...