I've seen the demo - and it does look good. For me, if John Bannon's name is on it, it's great. I may be buying this soon. If I do, I'll post up a review.
Isn't this exactly the same as an effect called 'Queens out of control' which has been on the market for years. It does have the added royal flush ending though (edit: actually QooC has the cards as jokers rather than a royal flush...so except for some minor handling changes, it is exactly the same)
It reminded me more of Wild Card except instead of having eight cards change to the face of a ninth, four backs change and four fronts change. And the count in the beginning seems the same as the Wild Card count.