Greg, cutting looks great! I got some 'lipstick plant' cuttings this spring and they didn't make it when the unscheduled monsoon season came up this summer. I wonder if that's a common name for all Aeschynanthus? IDK. Aeschynanthus and Columnea are 2 diff plants, AFAIK, but they are very similar. I hope you'll add a pic *when* you get those awesome flowers!
Here's a pic of my Col today, from above, with flowers starting on its' companion (Schlumbergera truncata.)