I decided to let a bunch of volunteer tomatoes grow this year and ended up with a ton of Everglades plants. However, since I was lazy I just let them sprawl instead of staking them. To my great surprise, I discovered some plants that appear to be hybrids with the other tomatoes that I grew last year.
Typical Everglades on the left with hybrid on the right. Plant growth is the same as Everglades, but fruit size is much larger and the skin resists cracking. Now if only I can stabilize these genetics...