Nintendo: Wii development isn't easy

Nintendo is confident that in time third-party developers will be able to compete with the mighty Mario

Nintendo has responded to concerns that its own in-house software has dominated at the expense of titles from third-party developers by pointing to the success of third-parties in the DS software market.

Earlier this month, Codemasters CEO Rod Cousens told Gamedaily.com of the "challenge" faced by third-party developers, claiming that the market is "clearly dominated by the first party and always has been". Cousens is far from being a lone voice, with other third-party developers expressing disappointment at slower than expected sales of their Wii games.