Lots of info on advrider.com.
I talked to the Schuberth rep at the BMWMCSEM open house about the helmet (he had a tent in the parking lot). Specifically I asked him about wearing goggles with it – he indicated that the eye-port is pretty small to wear goggles. I asked him about the Touratech model with the goggle strap holder, and he said that they may have some smaller goggles that will work, but most standard size moto-goggles are going to be to big to use with the helmet.
Mostly they are the same in every way, but have some very minor differences and they come in different colors.