Physalis

Ok, this isn't a tomato but it's a cousin.  This is growing as a weed near my front steps.  It's a Physalis species, in the nightshade family like the tomato.  This genus includes the ground cherry and tomatillo, which are edible , and some that are not.  I may keep it going till I can identify it for sure though I don't think I'll take a chance on eating the fruit.