Very nice! I have a sedum a little like that one you both have: it came with the NoID semp I bought at an Ithaca nursery 3 years ago. It doesn't seem to shatter, but then I never really tried to pick it up. It has spread on it's own, but just around its original area.
I have a couple of tiny sedums I got this fall to have indoors -- sadly, I don't think they would survive outside. One of them definitely does shatter and spread! Its name was something like "Teeny," and I don't mind having it as a "ground cover" in the pots in my light garden. It's blossoms are much smaller: they look like tiny stars against their green background...
