I read the paper, and it appears to describe a scenario where users don't even own the computer---they just rent time on a computer run by somebody else (known

I read the paper, and it appears to describe a scenario where users don't even own the computer---they just rent time on a computer run by somebody else (known today as the "cloud"). Also, it seems to describe a silo of applications where moving a file across applications becomes a significant action. I'm reminded of a story of a person, who, when asked to copy a file, loads up the application that made it (in this case, Microsoft Word), opens the file (from the harddrive) and saves it in a new location (the floppy drive), not even aware that one could just "copy c:file.doc a:file.doc". It does not seem like a system I would like. I'm also skeptical of image based languages (but I'm willing to admit I am biased towards files).