jhun27,
I sent a case specific inquiry yesterday and got response today from LA. Let's sit tight for another couple of weeks. See below.
Dear Client ,
We have received your passports, right of permanent residence fee and photos. Your file is queued for review by the immigration officers. We would not be able to finalize your case on the usual 15 days we stated on our letter. After review, your passports and immigration documents will be returned to you via pre-paid envelope if you have provided one, or by certified or registered mail.
Please advise if you need your passports(s) and we will return them to you. You can resubmit your passport(s) after 31 March 2011.
Sincerely,