Success!! Just received a fax from the Airmen Certification Branch confirming the validity of my UK/JAA PPL and gives authorization for me to ally for an FAA Certificate in accordance with CFR14 Part 61.39, 61.75, 61.77, 61.123, 61.153, 63.23 or 63.42....
The UK CAA also included a description of the limitations of my IMC Rating (ie not valid outside the UK)...
Now to book an appointment with the FSDO in Oakland...