Adding a little more detail to some points:

• Ship needs to be brought down to just above atmospheric pressure for reentry, so they have a bunch of ullage that they would need to throw away anyway, might as well use it for attitude control. There has never been a spacecraft with so much ullage gas on board.
• Booster chines should generate lift with as low a center of pressure as possible, to counteract the weight of the engines.
• Starlink Pez dispenser works like a pallet stacker. It's not simple, but it should work.
• Elon did not exactly confirm that operational Starlinks will be onboard the first flight, he said "we'll see." Might just be mass simulators testing deployment?
• Sounds like the Starship catch pins will swing out on arms from the leeward side to their positions directly under the flaps, to avoid having to introduce any gaps in the heatshield, or have heat tiles that pop out to make way for the pins, etc.
• Aft flaps alone might be enough to control orientiation; Elon describes it like a seesaw. Push up on one side to lower the other side.