One of the more compelling features in InDesign CS5 is the Span/Split columns feature. It’s a setting that enables a paragraph to span multiple columns in a text frame. Not only that, the feature enables you to split columns of text into multiple sub-columns. This feature is an enormous time saver for a whole lot of layout artists.
However, there are a couple gotchas and limitations in the first iteration of this feature.
See the movie below for the details.