Good point. I assumed it's a model 1098. It doesn't go by cc's. For example, model 999 it has 998 cc's. I believed only the 999R has the true 999 cc's.
Maybe, Ducati has a plan for a new model, 1198, in 2011.
it's a tradition ducati has whenever they make an R series bike. It's only produced for adherence to racing rules in production classes. hence the 749r was actually 849cc and the 999r was punched out 100cc as well.