Among all the projects that have a "2.0 label", it's possible to make a distinction between those that are mainly about social networkings and those that aim at bringing traditional office applications on the cloud. Each kind addresses specific needs and has its own barriers. In one case it's about changing the way people work, in the other it's about making them use their browser instead of their usual desktop application, what makes me say it's more about Office 2.0 than enterprise 2.0. In both cases, getting over IT...