Google’s acquisition of Metaweb is a major validation of open Linked Data schema and Sir Tim Berners-Lee’s 1999 Semantic Web “dream for the Web [in which computers] become capable of analyzing all the data on the Web – the content, links, and transactions between people and computers.”
It is all about the metadata.
It has been a heck of a great last three months for validating the Semantic web proposition, what with the Apple acquisition of Siri, the Huffington Post buying Adaptive Semantics, Evri buying Twine, Facebook’s partial implementation of RDFa and the opportunities afforded by Twitter’s Annotations feature.
I think Google TV will be seen as a monumental inflection point in the realization of "TV convergence." Android developers are going to have a field day employing dynamic querying of TV metadata and calling related internet content to deliver highly personalized & contextualized extended viewer engagement opportunities.