The >DING!< service seems to be tied to an individual "Installation ID". I think that only service subscribers can access/buy the DING! fares. They don't seem to be available to non-subscribers.
(Since this is a brand-new system, I'm still learning about it, *but*...) For instance, I could find some great DING! fare, even post it on the 'Net somewhere, but folks who don't have service subscriptions cannot buy the fares. The reason I 'say' this is that yesterday, when I clicked on my DING!/SWA icon, the URL in the browser window has *my* Installation ID within it.
I don't know if I've explained it very well. It's a shame that SWA has not made this accessible to Mac users. E-mail SWA, maybe even the DING! customer service folks, & let your dissatisfaction be known. If enough Mac users complain about being left out in the cold, I bet SWA will be able to figure out a way to make this new online feature available to more members of the ticket-buying public.
agnes!