I'm not really sure what I think of these things. My stepmom was trying to get us to do this with DD. I haven't seen the infomercial or anything but it just seems it makes more sense to spend that time reading with her instead.
She already loves it when we read together and I think that bonding time should be more of the emphasis than concentrating on a specific skill.
Could it work for a normal developing child? Probably. If you work enough on a skill the child will probably develop it. But I agree with PP that it might be at the price of another skill(s) that the child would prefer to be working on.
I guess, if the parents just use it as something as extra stimulus and the child enjoys it I don't see a problem with it. But I think in that case the parents shouldn't necessarily expect that the child will be reading early.
I'm a strong believer in going by the child's cues. If her/she wants to read, then go ahead and teach them but if they would rather play in the mud then I don't see any problem with doing the extra loads of laundry.
