Unfortunately the article largely ignores the two elephants in the room, both stated (1) by the same Tim Berners-Lee as quoted in the article:
Facebook and LinkedIn and others, and their aversion to sharing data with anyone else.
Net neutrality issues.
Sure HTML5 might help bringing content and development back to browsers rather than native iPhone and Android apps, but if those phones are being crippled by wireless operators, apps will appear alot smoother and win again.
1. http://www.scientificamerican.com/article.cfm?id=long-live-t...