Jesse Divnich, newly-installed director of Analytical Services at EEDAR, believes that there should be little disruption to overall sales of Grand Theft Auto IV, even though demand for Wii Fit - released in the UK just days earlier than Rockstar's title - appears to be extremely high.
However, he did admit that there may be an initial hit, based on some crossover, although if so, it wouldn't last too long.