By almost any definition, Flash is a closed system.' While Adobe's Flash products are widely available, this does not mean they are open, since they are controlled entirely by Adobe and available only from Adobe. 'They are only available from Adobe, and Adobe has sole authority as to their future enhancement, pricing, etc.
'Adobe's Flash products are 100% proprietary,' he responds. Jobs hits out at Adobe's claims that Flash is 'open' because 75% of video on the web is viewed using it. In what could best be described as a blogpost on Apple's site, Jobs says that there are six key problems with Flash - and that the most important reason is that 'letting a third party layer of software come between the platform and the developer ultimately results in sub-standard apps and hinders the enhancement and progress of the platform.'
Steve Jobs has defended Apple's decision not to allow Adobe's Flash technology on the iPhone, iPod and iPad - and cited a series of reasons why he thinks letting Flash onto mobile devices is a bad idea, including security, battery life and user experience.
