I installed yesterday an amazing looking Java-WebStart application: http://www.shwup.com/. I cannot tell you what it does, but it looks great, the user-interaction is also interesting.
It takes a while until it is installed - but it could be probably solved. Just forget Web 2.0 with all fancy acronyms - we have already Web 3D :-).
Web Apps, SPA, PWA with vanilla Java Script (ES 6+), CSS 3 and WebStandards only. As simple as possible, but not simpler. See you at: (Progressive) Web apps, Single Page Apps and WebStandards airhacks workshops at MUC airport, Winter Edition
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