MacRumorUser,
The Wiimote's problem is that the larger the screen size the less accurate it becomes. To make matters worse, most games don't offer the options to adjust the tracking and their implemention is just poor when compared to this game and Medal of Honor 2.
Now on smaller screens like the 14" CRT I own, the Wiimote's cursor is practically 1:1, because the sensor bar is about the same width as the screen. It's very precise to my movement and the latency is almost none. I played Prime 3 on this and my 19", so I had no issues with the cursor. I didn't need to use the auto-lock feature. My 19" is pretty much the same as the 14" when it comes to tracking, only a tiny-bit more latency when moving the remote. On my 42" TV the Wiimote's latency is noticeable, so it takes a game like The Conduit with its better than most controls and settings, along with placing the sensor bar half way between me and the TV to get things right. If I don't move the bar, the cursor is too touchy. I was able to get the controls good for my cousin's 65" projection HD with MoH2, by doing this.
With The Conduit they let me go into the game to tweak the controls as I play. This is really cool as it made it much easier to get the controls right.
As for MotionPlus, it fixes the problem with micro movements not being registered properly. It's a waggle fix, not a tracking fix. :]
High Voltage did look into it to help tracking when the camera went off the screen, but they determined it didn't help.
IMO, what really needs to be done is that Nintendo needs to first add more settings to adjust the tracking. They also need to rethink the sensor bar design, since it's really only good for smaller TVs. I've heard from others and read that NAMCO's PS3 gun, which uses a 4 LED setup is not only more accurate, but it also works well on large screens. It would be nice if Nintendo adopted something like this setup.
Also, we can all thank these newer HD sets for the death of a proper light gun. No camera based tracker will ever be as precise as a CRT that can register a pixel hit which correlates exactly to where one pointed.
Anyways, this game is good, it's run of the mill, but we all knew that. The only reason I paid full price, is because it's clear they put in the effort to make this game right on the Wii. I also bought this, because I've had an overall good experience with the Wiimote, since I played this thing mostly on tiny screens. I've played a BILLION FPSs on my PCs over the years, I've only played 2 on the Wii that were worth mentioning prior to this new one, so right now I'll jump on any FPS for the Wii that gets the controls right, especially when the developer put in the effort to polish the game.