some interesting excerpts:
>>PSone software accounting for a healthy 9.5 per cent of unit sales – that equates to more software sold for the PSone than the Xbox, GameCube or GBA!
>>Sales of Xbox games during 2003 were up 78 per cent on its launch year, and grabbed 10.4 per cent of the market compared to 2002’s 6.5 per cent – the biggest improvement year on year for any format
http://www.gamesindustry.biz/content_page.php?section_name=ret&aid=3041