From the list of 2007 predictions by Dion Hinchcliffe:
Not a dent will be made in 2007 in the installed base of pre-existing collaborative tools such as e-mail, telephone, and IM. But the groundwork will be laid for a noticeable shift in 2008 as managers and workers discover the advantages of increased corporate knowledge retention, far better location of relevant business information, and emergent structure in terms of tagging and linking. And I suspect that tools that integrate e-mail, telephone, and IM into Enterprise 2.0 environments will see the biggest early success.
Enterprise 2.0 and Office 2.0 will face off as leading new terms for online business software and no one will win. Enterprise 2.0 is a broad a term that with it’s automatic association with organization-scale back-end systems will struggle to maintain it’s particular niche in freeform, emergent, social software tools for knowledge managements. Office 2.0 is a nice sized umbrella but tends to refer too much to the client-side aspect and not enough on the back office side. Will they merge or just remain convenient short-hand that evolves through next year? The label debate is important because we need effective short-hand labels to identify the fast moving trends in our industry and for now my vote is with the latter trend.