There was some debate on cloud computing on this site some time back. Now here is a reflective piece, arguing again, that cloud computing is inferior to the present model of keeping most data and programs on personal computers: This freedom is at risk in the cloud, where the vendor of a platform has much more control over whether and how to let others write new software. Facebook allows outsiders to add functionality to the site but reserves the right to change that policy at any time, to charge a fee for applications, or to de-emphasize or eliminate apps that court controversy or that they simply don’t like. The iPhone’s outside apps act much more as if they’re in the cloud than on your phone: Apple can decide who gets to write code for your phone and which of those offerings will be allowed to run. The company has used this power in ways that Bill Gates never dreamed of when he was the king of Windows: Apple is reported to have censored e-book apps that contain controversial content, eliminated games with political overtones, and blocked uses for the phone that compete with the company’s products.