This is what the Java Virtual Machine could have been but never was. Most applications are so lightweight for today's computer capabilities that running them ov

This is what the Java Virtual Machine could have been but never was. Most applications are so lightweight for today's computer capabilities that running them over a virtualization layer is not a problem at all. As a developer I want my applications to run everywhere without having to take into account different OSs, architectures, etc. You still will have native applications for a lot of different situations where performance is more critical and paying the higher cost of creating, testing and distributing for different OSs. That is a skill that should never die, like creating the hardware itself. HTML5 is a good attempt to this, but it has problems with not-well-defined behaviours and the fact that not all applications, e.g. games, fit the hypertext approach.