On closer inspection, I believe almost all of mine have it too, to some degree or another. The four hybrids are holding up the best. I am going to rip out the ones that are affected the worst...the fruit is spotted/rotting, or otherwise the plant is not bearing much.
I am at the peak of my harvest right now, so I really don't want to spray anymore, since I'm getting a few tomatoes each day. I am going to cut the bottom leaves off of the ones that are least affected and burn them. As I understand it, the damaged parts will go on to release more spores, so you are still probably doing the right thing to keep them trimmed, Stubbornhill. But after a while, if the plant loses too many leaves, it won't have enough energy to fruit.
Also, I am cutting back the tops (sterilize the pruners first w/ bleach or alcohol) so that the plants won't put anymore energy into making new fruit. We're still getting lots of rain and I don't think mine will be able to make it far enough to ripen that fruit anyway. It is a pretty big disappointment and so frustrating. But I think at this point, it comes down to trying to make our odds better for next year.
After I get a decent harvest and rip the rest of them out, I'm going to solarize the soil too, while we are still having 80-90 degree days here (which I can count on into the first week or so of September).
ETA: Neko Chan, that is a good idea every year, to rotate them too a different spot. Also I won't plant potatoes in that spot either, since they share a lot of the same diseases.
They all loaded with wonderful green tomatoes and now, I'm not really sure what to do. I've been taking the leaves and stems off when I see them, but before long, I will just have sticks with tomatoes. 
