Keep in mind that RN are the ones getting the info starting November 18th.
We the diners are only going to start getting notified real-time "soon". No word on how soon "soon" is. I presume RN first has to verify that they're getting the info on a timely basis from MC, Visa, and Amex (and did you notice no mention of Discover? so will this feature not work for those using a Discover card?), and then figure out how to transform that into automatic real-time notifications. So I wouldn't expect it "any minute now" necessarily.