Apologies if there's a post about this, but I know this has been discussed informally for some time and there's not much time to sort this out if it hasn't been finalized.
I'm guessing Saturday night will work for most people. That day there is an NFL Fan Rally at Trafalgar Square. If it's like anything else NFL UK has been involved in there will probably be a fair amount of schmaltz but it is hosted by Jerry Rice and Roger Craig, and depending on where you look it's possible they'll be available to sign autographs/meet fans and so on. That's at 1 pm. Beyond that, uh, who knows? In a perfect world we'd be able to find a quiet pub, talk some Niners/Giants and have a good time. I've got a bunch of Niner DVDs and some other classic games to bring. The big question, of course, is where to find a reasonably accommodating pub on a busy Saturday night.