Fair point no_one, there is a difference between an arrangement over food, exclusivity over an aviation product and your example of a particular Aircraft Manufacturer, I'd say they would be the 3 levels infact, Food being insignificant and expected, EFB being middle ground, and an Aircraft manufacturer exclusivity being on the extreme end and I'd suggest unacceptable.
It should be mentioned that Garmin are listed as an Exhibitor on the Air Venture website, I'm assuming there may perhaps be some restrictions placed on them, I'd doubt it though, but it could also be that they are recognised as being substantially different, OzRunways being a sole EFB application whilst Garmin Products generally incorporate aspects of EFB into their products in a way that OzRunways cannot and likely don't want to.
The Jeppesen EFB IMHO isn't worth discussing anyway! haha.