The "real" tomatoes are ripening! Ahh. Can't beat this time of year.
A couple weeks ago my mom sent me a fascinating article about how supermarket tomatoes lost their flavor. Turns our the green shoulders contain chlorophyll and work to make the tomato sweet as it ripens. The great supermarket tomato advance was to remove the green shoulders and produce a perfectly red tomato - with NO TASTE. Remarkable!
Work linking tomato sweetness and green shoulders was published June 28, 2012 in the journal Science: How Tomatoes Lost their Taste.
A nice article is at The Salt (NPR food blog): How The Taste Of Tomatoes Went Bad (And Kept On Going).
My first three real tomatoes are a Pink Beauty, a Purple Calabash and a Brandywine.