I flew United a few days ago and noticed the change in the flight map: you can now see individual aircraft moving about airports, which is awesome. What's less awesome is that the marker of the aircraft you're most interested in, namely the one you're sitting on, is not aligned with the map when in detailed view, and unlike the Flightaware app, you can't get info about other airplanes (operator, flight number, destination, etc) by tapping on them.

Even more annoyingly, during takeoff and landing, the flight map system intentionally disables any way to see your precise location, altitude, velocity and direction. The "cockpit view" pane that shows these when cruising becomes unavailable, and the airplane marker is also hidden beyond a certain zoom level. Presumably this is some kind of misguided security by obscurity measure to stop terrorists, who apparently aren't smart enough to carry mobile phones with GPS receivers.