The wii doesn't have demos to DL, but I think it was confirmed that this would be coming soon. The wii supports resolutions of 480i or 480p I really forget the whole HD thingy.
Better at getting my entire family interested in gaming? Absolutely. My mother, wife, sister, etc... couldn't be less interested in Gears of War or PGR3 if they tried, yet they all absolutely love playing Wii Sports. On Xmas day, we spent the evening playing with the Wii, and the 360 wasn't switched on once.
1. Yes, you can buy extra HD wires to improve your picture quality
2. Cant say. Truly i am a Nintendo fanboy so i dont pay attention to other compettiton. But! If you want a fully online gaming, and grafical expercience ide go with the 360
3. Not yet. But there has been rumors to that effect
Simple clarification. You can buy a component cable to improve your picture quality. It will enable you to view it at 480p/30fps (as opposed to 480i/30fps) on a progressive-scan-enabled set.
It will not, however, permit you to view in the HD formats (720p/30fps, 1080i/30fps).
