Spotted...

Not sure, I was behind him at the lights hence the reason why i knew it was Rapha. I take it you were the chap that commented at the lights and asked if it was Titanium ?

yup, that'd be me. what was your ride? Kona? Again, I was really fixated on his bike. Saw it from far down OKR and made areal effort to catch him just to see what frame it was :)
There was also another guy on a filmore in front of me ... I like filmores.