Of course, the two planets would be tidally locked, unless they were very distant from each other.

Interesting dynamics with a permanent tidal bulge towards and away from the partner (but this would include the rocky crust, too, so it wouldn't swamp the land). One face of the planet would have a permanent "moon" and eclipses would be more common due to larger size than Luna.

(Have you read Bob Shaw's "Wooden Astronauts" series?)

Moons of a "Goldilocks" Jupiter would be very interesting habitable sites, but likely waterworlds due to the large % of ice, unless like Io they have had a hot tidal history.