At last November's annual conference of the CRC for Spatial Information, I presented a vision on "SDI 2.0", or what Spatial Data Infrastructures will look like in the 21st Century.
There will be a shift from SDI 1.0: top-down, supply driven, slow and expensive initiatives, that mainly generate a flurry of (user-less?) YAPs (Yet Another Portal), to SDI 2.0, which is demand driven, mobile, crowd-sourced, cheap and immediate. In SDI 2.0, the default 'authoritative source' is no longer assumed to be a government department or large commercial provider.
SDI 2.0 will harness the forces of Web 2.0 and neo-geography, where there is less and less distinction between users and consumers of geodata. There will be a long tail of many producers of little amounts of data and small applications and mash-ups. This dramatically shifts the demands on government, industry and data providers, who ignore these trends at their peril.
You can watch the slides below, or download them here.