Enterprises 2.0 Strategies

I read an interesting piece by Dion Hinchcliffe on Enterprise 2.0 strategies the other day which reviewed the various levels of service. But as far as Enterprise 2.0 market entry issues are concerned I really liked the insight from Euan Semple, which I'd paraphrase brutally as being there's little space for companies to adopt in between the extremes of total control and total free-for-all! Update:I also liked the comment from Andrew Burton of the Viking Fund: he likened selling conventional enterprise software as a long term courtship followed by marriage- whereas Enterprise 2.0 was something closer to "casual sex" by comparison!