Anon coins are going to blow up bigger than any other coins. There, I said it

Why? Well, Andresen already said he doesn't want to implement coinjoin into bitcoin. So, the traceability is an issue for all the criminal types.
I wish people would stop associating "anon" with criminality - this is garbage and not the reason why "anon" is important.
It's important because in most societies, peoples finances are not in the public domain.
It's got nothing to do with "criminality" it's to do with privacy. In the fiat world, personal and commercial banking transactions are not anonymous but they are private. That's what's missing from Bitcoin - at least as far as potential association of identifiable entities with block chain addresses goes.
As far as "criminality" goes, bitcoin and "anonymous coin" will probably be used just as much as each other to store the proceeds of illegal activities, bit coin probably more. The proceeds of crime right now are stored in US Dollars even though it's not "anonymous".