Notice, SP says it's "from 'Tamami" and thus recognizes it's origin/heritage!
May I propose: LC Mini Purple 'Tamami' typo variegatum?
But the suggestion to consult Leslie (DrLeslieEe) is a sound one - with his profound knowledge and many years of experience in the field of Catts! We would also almost have a direct link to the august body of AOS with his status as ass. judge!
It is not unusual for a mutation of a mericlone population to differ enough to warrant its own cultivar name, particularly when a flower changes to similar (but different color or markings) or better (thicker, larger, more spotting etc). Case in point is the Phalaenopsis Golden Peoker 'Brother' that mutated to harlequins 'SJ', 'Everspring', 'Nancho' and 'BL'. These were so significantly different that they created the fantastical harlequin phals we see today.
Leaf mutations are rarely noted with new cultivar names if the flowers remain the same as the original for size and color. They may instead be given a horticultural name instead like the mutate leaf phals and odonts. If an award is given to commend the leaves, usually a new name is not given out, but merely a point is made that the mericlone has 'interesting' leaf patterns, worthy of recognition.
In the case for this Mini Purple, I compared the original award photos and the current photo. It looks like Phred's flower is bigger and rounder (esp the petals) than the original photo. If Fred can give the dimensions (NS, size of petals and lip, both by width x length, in cm ;o) and feel the texture (medium, firm, hard), we can ascertain if the plant had mutated to a polyploid (4N?) in conjunction with the leaf changes. In this case, the plant can be possibly deemed sufficiently with enough differences from the original plant to warrant a new cultivar designation.
Also, research must be done to see if this plant is unique for the leaf traits or if it was mericloned specifically for the leaf mutation, and that there are not thousands out there.
I will confer with AOS HQ further in this and get back to this thread when I get a confirmation.