CORed
Penultimate Amazing
Vine ripening improves flavor, but that has nothing to do with GMO. Tomatoes on the vine are just as apt to be GMO as non vine.
Flavor was bred out of most tomatoes, in favor of size and uniform redness, before GMO. Vine or no vine, store tomatoes are just awful. If you want a wonderful tomato, you need to grow your own heirloom, buy an heirloom, or wait for them to GMO the flavor back into commercial varieties.
Commercial varieties were also bred to ship well, which contributed to making them tougher and less flavorful.