Hello Cripes,
thank you maybe it is him. Thank you for posting on here - yes myself and a few friends have been tweeting about him too. Brian doesn't wear a collar but he is microchipped. My number is 07834280064 if you did get closer to him. I know there was another lost ginger cat found the week before Brian went missing so maybe it's that one also. Brian is very friendly so would have thought he'd come up to people, but then again if he's a bit confused and scared maybe not.
thanks again,
Nicola.