according to Tim Berners-Lee in Outside the Lines - CNET News and although the article was published last year, it still contains great examples of some of the features the smart web will bring. TBL is a true visionary, and one with a great track record of delivering on his ideas so this is not just idle speculation.
The comments by Google's director of research are very revealing too. Will it really take 50 years for intelligent digital intermediaries to become a reality? Who knows, maybe less. What's clear, is that the implications for the travel industry will be significant and transforming as we slowly but surely move forward with new technology developments that will make it happen. Exciting stuff!