No, as you noted there's nothing that sticks out as being a "whoa, we gotta have that!" feature in PG 7.2.
In the past we've usually based our work on early beta releases of PG. It's a sign of PG's maturity that we've been sticking with PG 7.1 throughout this OpenACS 4.5 effort rather than dump it in favor of PG 7.2 ASAP.
