in 5 years, the local installation of software will be a thing of past ... cloud will rule ... not because its great ... but because it takes away freedom from end users ... governments across world want a OS like iphone ... where u can do anything using thousands of apps but all of them being controlled by a central agency (which for apple is app store team) ... google chrome wants chrome OS to rule the world ... as it is very easy govt to block a web application than to take if off from millions of systems if it were installed locally ...
all this gives govt a total check on information, data, and access ...