I think they are trying to target female gamers, it goes along with their mantra of new ways of playing attracting new gamers. Females are the last untapped area in the gaming market. Games like the Urbz, Sprung, and Super Princess Peach are some of many that may be targeting a female market. Also applications like Pictochat and Ping Pals add a social element to gmaing that has attracted a lot of female gamers to online chat games like those found in Yahoo.
Unfortunately NOA and their terrible ad agency just don't understand. Graphics are not going to hurt the DS, and lack of analouge stick will not hurt the DS. It's these god awful "mature" sex comercials that will kill the DS in America. They are targeting an older audience that the forthcoming softwere line up clearly doesn't support. The only two games I see people targeted in these commercials being interested in are Metroid Hunters and Madden. They are advertising so blatantly to the wrong market that they will turn off the potential buyers from other markets. Nintendo should advertise a lot more like apple, make themselves look like the cool niche alternative becuase that IS what they are. These sex ads speak poorly for what they are really trying to do.