So I just got a Wii... here's a few things I found out that I didn't know:
Wii:
-it has a infrared sensor bar that you need to set-up for the remotes
-it has Wireless!
-not all games use the Wii nun-chuck
-the controller has a speaker in it! (although the sound quality from it is really poor)
Wii-Fit plus:
-seems to focus on balance and posture
-glorified calander that keeps track of your weight
-there's games that use the Wii balance board (Sonic and Mario at the winter games) and it's actually fun!
Dead Space Extraction:
-when you tilt the controller you get secondary fire (for fans think of the plasma cutter)
-they added a few things to keep track of so being on rails isn't too big of an issue
Super Mario Brothers Wii:
-if you have big hands, be careful! If you touch the A button you go into a bubble and have to restart the level