I suspect that she would have dropped the colorpoint and bicolor patterns as well, unless they weren t necessary to breed mitteds. There are not many. Both are bred for their personality and both have the tendency to go limp when held. RagaMuffins have a slight cranial doming and rounded scull between the ears, while Ragdolls have a flat plane between the ears. RagaMuffins have walnut shaped eyes while Ragdoll calls for oval shaped eyes.
RagaMuffins have a bit shorter and thicker coats, Ragdolls have silky, medium long coat.
The most obvious difference is that RagaMuffins are recognized in all colors and patterns. For the buyer, the biggest difference hovewer is that the RagaMuffin is much more rare than the Ragdoll, and it is still recognized by a very few cat associations. Right now RagaMuffin breeders are trying to change the look of the breed to make it distinguishable from the Ragdoll. The aim is a more rounder, heavier boned cat with a shorter nose. Once the RagaMuffin has a clearly different appearance from the Ragdoll, the breed will probably get more recognition in the cat fancy.