Analyst firm Cowen and Company has conducted a survey that found demand for Nintendo Wii games falling while purchase intent is rising for Sony PS3, reports Edge-Online. The firm conducted a survey of 1,312 people and 1,013 gamers. It found falling demand for Wii games among both Wii and multi-console owners. For PS3, the survey found that 21 percent of those who don t own Sony’s system said they will buy one eventually. Software purchase intent was also high for PS3 and Microsoft Xbox 360, with respondents saying they planned on buying more games for those systems this holiday season. Read more at Edge-Online.