Jessica - You don't have much control using the iPad app, there aren't custom fields that could be added to trigger this type of behavior.
What we have done for our customer days however, is that immediately upon checkin, a smart campaign is listening for Member of Program / Status / Attended, and once that happens they are sent an "Event Welcome packet" with all the information they need for the upcoming event, slides, literature, social, etc.
I don't see any way that you'd be able to select this person was Product Lit 1 and this lead wants Lit 2.