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The diffusion of netbooks exhibits many interesting traits of radical and disruptive innovation: the change in technical tradeoffs and product architecture (though not of core technology), the downsizing in performance (good enough for a new market), the inertia shown by incumbents.

A must-read website showing the breadth of the challenges that are connected to the radical innovations attached to the "future of mobility". At the center is the "megacity" urban vehicle, that exhibits an interesting approach to modularity.

TV sets are exhibiting a technological revolution after another. Flat screens (LCD and plasma) have overcome CRTs, and now 3D TVs seem likely to define a new paradigm over the next few years. Of course, this heavily depends on the availability of 3D content and on consumers' desire to experience it beyond movie theaters. 

Can "Universal Expositions", or EXPOs as they are now known stimulate innovation? This was the case 100 years ago, and it might happen now too, if one looks at the concepts for "future cities" being showcased in Shanghai. However, it is also true that the lead time from showing an invention at such events to actual diffusion is often very long.