Sony officials described <A HREF="http://news.com.com/2100-1041-5102340.html?tag=nefd_hed">a prototype for its PSP gaming device</A>--due out before the end of 2004--during a presentation to U.S. investors that reiterated plans to restore profitability to the company. According to News.com, PSP is designed to rival Nintendo's Game Boy handheld game player, mobile phone maker Nokia's N-Gage wireless gaming device, and Apple's iPod and iTunes music download service.