I think this is what all of us have wanted to read:http://wii.ign.com/mail/
and in case your too lazy to click a link!
I'd love nothing more than to tell you that everything is working one-hundred percent perfectly - it's certainly close - but I've put a lot of hours on the Wii hardware now and there are the occasional glitches with the Wii-mote, nunchuk and sensor bar. For the most part, everything is functioning fine - well enough, in fact, for me to recommend that you pick up the console for your son. I think the both of you will ultimately love it. However, you have to be very aware of where your hand is and where the Wii-mote is being pointed, just as you have to be smart with your gestures on the nunchuk. When you play a game like Super Mario Galaxy, everything just works - totally and completely. You point at the screen and your star does what you want. You move Mario around effortlessly with the nunchuk's analog stick.
That said, in games where the Wii-mote replaces a reticule, as it does in Red Steel or Call of Duty 3, for example, I've encountered rare, but still notable issues where the reticule will just drop off the screen and you have to take a second to reorient the positioning of your hand to get it back. When that happens, you temporarily lose full control of your movement. This is not a problem with a dual-analog setup and therefore it's a brand new consideration that is exclusive to Nintendo's new machine. I think it is also something that may be ironed out over time. Bear in mind that many of the games I've been playing are unfinished and running on Wii development hardware. Plus, these are first generation Wii efforts and the kinks are likely to be smoothened completely by the second wave.
You also have to remember that many Wii games don't even use the pointer functionality or sensor bar. In a title like Excite Truck, you turn simply by using the accelerometers in the Wii-mote. When you rotate the controller, the accelerometer measures the change and translates the data to the console - nothing more, and it's very accurate. There's not much of a learning curve for these types of games so you and your son will definitely be able to pick up and play without any issues.
Thing is, even with the aforementioned rare glitches surrounding the Wii-mote and sensor bar, the combo is still ninety-five percent accurate and very highly recommended. The added precision made possible with the remote is already pretty spectacular for titles like Metroid Prime 3, Galaxy, Trauma Center and Rayman, just to name a few. And the craziest part is - again - these are first generation Wii games. Look back at the launch lineup for DS and compare those games to the stuff that's hitting now. The difference is night and day.
Well I am glad to know it's not horrible or broken, and that not all games use it. I wish that these first generation titles would've been better developed, and who knows maybe the shipped product will be perfect. I am however a lot more comfortable knowing that Matt is being honest, there are issues, but they're not as bad as one or two bloggers might make them out to be. Hopefully any kinks will be ironed out with games that use the pointer functions. I personally am still perplexed that the FPS games are not using a fixed reticule and instead having that movement box on the screen. Hopefully Nintendo will get that magic that's working in Mario Galaxy out to all the other developers. I think even 5% mis-accuracy is way too much, maybe I could live with .001%, maybe
here's another interesting Wii article that I pretty agree with wholly:http://wii.ign.com/articles/739/739662p1.html