For example, orbital period vs eclipse duration for the binary stars (not the planets). The resulting data cloud is rather interestering because embedded in it is a single curve of data point aligned on the same trend. it's not olinear - it's a strange power-law relationsgip that doesn't make sense to me, but there's a clear family of objects there that have a strongly-controlled relationship between eclipse duration and size - cross corellating these tells us something about the primary's size.

Another interesting numkber is the inferred stellar density. If this number is actual density of the primary star, then some are coming out with crazy values, which tells us that something is going on that we don't suspect - either these are not normal stars, or there is a huge error in the measument.

Suffice to say, the next year or two will see an explosion of papers exploring these features, and others, of the CoRoT datasets...