The San Diego is a RevE isn't it? It's the 1MB L2 cache single core RevE I believe.
The San Diego is the premiere A64 short of the dual cores.
Edit because I can't spell Diego!
Edit again: Yeah, the San Diego is RevE.
Look
here.
The 90nm SSE3 enabled chips are the RevEs.
San Diego is indeed the 1MB single core showing from the Rev E line.