I'll add last nights positive to this as well, especially as it started out as a negative.
FLL-DFW-SFO with a 50 minute connection. Got a text about 3 hours before that FLL-DFW would be 12 minutes lat. OK. 38 minutes. At the airport, the plane got in late, took longer to clean (passenger got sick, so not AA's fault). Kept rolling. Left 36 minutes late. Then a short weather hold. At take-off, we would arrive (A37) maybe 5 minutes before DFW-SFO (C14) left.
Got in a little earlier, called EXP desk to have them call DFW-SFO. Did the OJ airport thing using Skylink (held the door open for an extra 10 seconds for mrs. brp to run up the escalator. Made it from one plane onto the second in 8 minutes...as we approached, they said "slow down, we're holding it for you." We took about a 13 minute delay as they waited for others, some (mabe all) from the same flight.
Last flight out to SFO of the night. Really short delay, and about 8 or 9 happy campers.
Cheers.
I had a similar experience a few weeks ago connecting to the last DFW-IAH of the day, which was delay due to T-storms in the area. Albeit, I was already on the plane when they decided to reattach the jet bridge to wait for other connecting pax so I may not have been the happiest camper on board. But either way, it was nice of 'em to do it. Kudos.