Joyce, my experience with Green Zebra and Green Zebra Cherry is the same as Robin's - two completely different tomatoes. We received our Green Zebra Cherry seeds from Carolyn through her SSE offerings 2 years ago and were surprised at it's flavor and size of the seeds (for a cherry). GZC also carries a recessive gene for variegated leaves and, although it is only expressed at an early (4-5 leaf) stage, and is not obvious without careful examination, it is there, and can be observed on a fair percentage of seedlings.
Now you will have to make beautiful lamb chops with Green Zebra Cherry
Steve