I think that many of the arguments have been rehashed so long that many creationists have gone underground, with respect to open debates like EvC. They have their own forums to lambast proponants of the ToE and have retreated to those where they may feel more "at home."
The other issue may be that ID needs to develop more sets of arguments, which YECism has in abundance. As you said, YECism has many topics it could debate. ID appears to me to be a somewhat younger movement, thus lacking the depth of criticisms that YEC's could fall back on.
The Dover decision may have let a lot of air out of the ID movement, but I believe that it is likely not a dead issue. There are too many opponants of "Darwinism" (whatever that is) and their belief in its relationship with atheism, drugs, secularism, imorality, Clinton, the Liberal agenda, etc.
What we are likely to see is just the calm before the storm. Either the ID movement will embrace their YEC roots and say "Yeh, we believed this all along, we just wanted to bring God into the science arena." or they'll evolve.
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