The other games do work quite good on it must be said tried the fitness evolved game today full edition, it's actually very good far better than what I expect from a fitness game. First it won't let you cheat and doesn't reward you for poor performances or lack of effort. To progress to a higher difficulty the task/challenge must first be done on the easy difficulty and it's not afraid to point blank say "you're not ready to move on, try it again" I like that it also through speed of movement and body tracking works out how many calories you've burned and sets goals of realistic calorie burning (first target is 100 calories) The fitness classes work well with the demonstration done by an actual body tracked person not an XBL avatar which is good and doing something like the "Zen" lesson (tai chi) it accurately depicts how good your form is as a percentage and also by highlighting the body parts what are in the right position. I think that this is far superior to fitness games on other formats and since the wii fit balance board has a capacity of 21st weight this which requires someone to input their weight to begin with is likely to be better off for heavily obese people since nothing can break under their weight except the floor lol!
I'm still going to reserve judgement on the Steel Battalion game for when it arrives but so far Kinect looks to have some of the most promising movement control games out there atm though as me and our nintendo rep argued about before eventually agreeing, the wii still has a strong advantage in terms of quantity of quality games if we look purely at Nintendo own "in house" developed games.