Not so true, the PD was the first of offer remote steering and power trim in a production model, that was in 2003. The PD reverse can be used on a remote steering rig and they are working on an automatic unit to get FPR with steering rigs, that should be out mid year and will be retro to any PD unit ever sold. They will also have the 36 HP models out this summer.
As for square chine/round/tapered chines. The chine is how the sides or corners of the boats are build, either rounded over, a hard square break or a tapered break (meaning the corners are angled somewhat). Chines determine how a slick bottom boat will corner and how much water it will draft at the back. Example: A rounded chine boat will roll up on the rounded corners in a hard turn in water over a foot or so, so they do not slide in turns much, however the rounded surface does not displace as much water as a flat one would, so they sit lower in the water and need more speed to stay on step or plane. One the other hand a square chined boat will draft the least amount of water as the bottom is totally flat from side to side, it planes the easiest and at a slower speed, however it will slide in a hard turn, the more weight you add the less it slides, but it will slide in a full power turn. The tapered chine is in between, it will roll up on the side in corner and drafts less then a rounded, but more then a square. All three boats will slide when you run with the boat on the bottom at speed, a round chine can't roll up on the corners if it is running on the bottom in the mud.
General rule of thumb when selecting a hull design. If you need handling first and foremost and can't master driving a square chined boat, get a tapered or round (however the rounds are slower and don;t handle load as well). If you are running open shallow marsh and can learn to run at a slower speed in shallow and master how to handle a boat that will slide, get the square chined boat. One you learn to run a square you can do amazing things by working with the side, but if you let it get away from you, you will end up slide up on the bank or into with weeds.
Hope this helps you understand the chine issue better.