Well, the next one has bloomed. Actually, a few more of my mother-in-law's plants have, as well as one of mine (that I received from her). I suspect they are all the same clone.
My NOID (varying lighting conditions):
My mother-in-law's NOIDs:
The two plants out in the sun seem to have more upright spikes, where as the two under cover (mine and one of hers) have cascaded a lot more (that said, the bulbs on mine are at a severe angle to begin with as a result of the way they grew... hence the spike almost starts horizontal; going to repot it after flowering to remedy the situation).
Also going to post this to the Orchid Source and see what MrCym thinks.
Would love to hear your feedback and possible thoughts on an ID.