The two look related. I see the 'Suzie Q' says that it is a form of Sedum anglicum. It doesn't have the look of a S. anglicum.
I see it does have a patent pending.
It was introduced by Native Sons Wholesale Nursery and was named after their propagator Susie.
I have the green form of 'Little Missy'. Chickhill sent it to me. It too is a sweet tiny sedum.