Point 2 is a bit much I think. I've attended/sponsored/prepared hackathons in the past and all have been great without needing their own mobile app. The other

Point 2 is a bit much I think. I've attended/sponsored/prepared hackathons in the past and all have been great without needing their own mobile app. The other points are all valid. I'd add that sponsors should be aware of point 8 from the get go. If you sound like a pushy sales guy trying to add your company's API to "hacks" that don't need it the attendees will remember your company for the wrong reasons. If you have product development, pitching, or technical experience that applies you should share it.