Sceptical about running everything on top of HTML5. Even a specially tailored JVM has proven challenging to optimise, rendering 512MiB mobile devices into laggy

Sceptical about running everything on top of HTML5. Even a specially tailored JVM has proven challenging to optimise, rendering 512MiB mobile devices into laggy paging machines. Apple got something right: compiling to the metal is not obsolete and it won't be in the foreseeable future. Batteries are not going to last "too long to matter" and devices are not going to be exceedingly quick for the task, not any time soon if ever. It would have been a lot more effective to provide hardware support to executable code sandboxing than running a sandbox on top of virtualised hardware. Being Google almost exclusively software people at the time the Android project was devised, I think they missed big time in the performance front. But they still made up for it in open fronts and they're leading the market.