Yup, it's pretty much the same as butter lettuce.
The yellow flowers on the toms are the start of the fruit. You can let bees and instects pollenate or use a little paint brush early on to pollenate flowers. Unlike cannabis they are not dioceus plants.
I only tend to remove cotyledon leaves, and have not removed leaves from broccolis before. I would guess that removing leaves is not the best thing to do, but then there seems to be a massive debate that rages on about it in the MJ world....perhaps there is a similar blog discussion on Broccoliitup.com ?!?!?!?
I grew a lot of different varieties of lettuce a couple of years back but got wiped out with bugs so never had much luck there. And spinach, god dammit i need to eat more of the stuff. I have never grown it though.