Further info:
Just had a chat with an ATCO from RHV. They have been as confused as the rest of us by ECB and the multiple, conflicting Notams - but as you'll see from the AOPA site, things are slowly returning to normal Class B ops.
CPTMTD: The fact that RHV tower sometimes "forget" about a/c at busy times was also brought up. RHV, being a (relatively) quiet airport uses the tower as a training area for ATCOs. He said they try to deal on a first-come, first-served basis, but occasionally lose track. He also said it was quite in order for pilots to make multiple calls if they feel they have been forgotten!
Lastly, he said that tower visits by pilots to US airport towers was likely to remain prohibited for at least a year, due to enhanced security at all FAA locations. He suggested that we make weekly calls to see whether visits would be allowed once more. I have not seen this in the press, but he said that one or more of the Sep 11 hijackers had recently been for a visit to Boston tower. Though I fail to see what benefit to terrorists can be gained from visiting RHV tower!