I applied my (plus my two dependent children) Naturlization application on basis of (4 Year WP + 1 Year ILR) on 11-Jun-2006 through NCS service.
I recieved the acknowldgement straight away in a week i.e. on 17-Jun-2006. but after that I havn't heard any thing. It is almost two months now. I am wondering why it is getting late as my application was straight forward. I have a good credit history (as I am a homeowner) and I submitted all required documents including P60's. The only twist is that my children passport got expired few months ago but they have the ILR sticker on it.
Should I contact Home-Office to ask for update? Sometime I think that it is possible that they have sent me any letter but it has been lost in the post; just optimistic

would it harm my application process If I contact them? Please any adivce.
Thanks.