I wrote about my enthusiasm for the idea of "Government as a platform" in 2010 and again in 2013. It's (genuinely) great that Sir Jeremy Heywood - the recently-appointed head of the UK Civil Service - has just done the same in the post - More than just websites. He says...

We do not want to continue running government as a series of disjointed silos ... we are increasingly focusing on an idea called “Government as a platform“.

The idea of "Government as a Platform" is a huge thing that could fundamentally change the performance of Government. Necessarily, with this improvement would come an equally huge change in the shape of government (see the Gubbins of Government). There will be inertia: Sir Jeremy should not let the focus lapse.