On GovLoop, Craig Thomler says “maybe”:
I’m still undecided over whether Government 2.0 remains a useful term. It certainly helps bring together a disparate group of people working in closely related fields – citizen advocacy, open government, community engagement and egovernment, finding points of similarity and synergy that support all their work.
The term has a basis in reality – we can see the changes occurring in society, from the increasing influence of epetitions and online advocacy to influence policies, the move towards open data and copyrights across government, changes in both how government agencies and politicians engage, communicate with and influence their constituents and, more critically, changes in how citizens engage, communicate with and influence politicians, political parties and government agencies in turn.
You can read more here.