They overcame that "technical problem" that was preventing them from doing this.
DS games will be hitting the Wii U Virtual Console at some point, said Nintendo President Satoru Iwata.
While no timeline was given, Iwata noted that they "solve(d) the technical problem" to create the DS Virtual Console on Wii U.
Brain Age was shown as one of the games for the service. There is still no word on Game Boy Advance games coming to the Wii U Virtual Console.