Well, we visited the Phil Embassy today to get the Dual Citizenship and new passports sorted out.

That was after a day of filling out forms and checking we had all the right paperwork and photocopies of the relevant documents.

Got there about 11am, a short walk from Embankment tube station up past Charing Cross station, the Embassy was easy to find just the other side of Trafalgar square.

You go into a waiting room and get a numbered ticket, sit down and wait for your number to be called. You then go up to the desk where they process and check your papers and give you a raffle ticket number. We must have been too late for the 12 noon session and so had a bite to eat and returned for 3pm. My wife and step daughter were both called up for biometrics to be done (so yes my step daughter DID need to attend).
Myself and the little one amused ourselves (and possibly annoyed others) by playing I-spy to kill time.

Eventually they were called in for the oath taking and to receive certificates, lthough the little one was too young to take the oath.
As we provided a self addressed special delivery pre paid envelope (available from the post office), passports will be sent on to us. I think we finished between 4 and 4:30pm.

Also submitted a Special Power of Attorney form which others might like to know will also be sent on to us in another self addressed special delivery pre paid envelope.

We just happened to have one spare as I had purchased two from the post office first thing before we left, thinking we would need one for each passport application.

However, common sense prevailed and both passports will arrive in the same envelope (wouldn't happen in the UK passport office I bet!).
Finally got home about 6:30pm with two very happy Fil/brits with dual citizenship!

At last no more immigration paperwork!