Sony Computer Entertainment"s chief technology officer Masayuki Chatani has cast doubt on the company"s plans to include a hard disk unit in the PlayStation 3"s launch package next spring. Speaking in the pages of Japanese magazine Famitsu, Chatani said that a strategy had "yet to be decided", but added that he felt people would want to upgrade to higher capacity drives - the implication being that Sony would shy away from making the hard disk unit an obligatory part of the PlayStation 3 launch package.