Tabstrip tab should be able to specify it's content's ID
Currently the tabstrip just magically selects which container element goes with which tab.
You should be able to specify it both with data- and with dataSource data so that you can tell it exactly which one to use (and can then have multiple tabs with the same content as well).
I agree. Since a dataSource is bound it would make sense that the same way you can specify id via the model schema on a grid should also work for the tabStrip. I don't think calling methods by their tab index is sufficient or making changes via jQuery outside of the exposed methods.