- lightweight, loosely-coupled programmable systems - think syndication not coordination.
- it's all about community
On the first idea, the focus is on syndicating outwards your data, and not trying to control what happens on the other end of the connection. This is a crucial idea that many companies are not quite prepared to handle. Legal and marketing groups in many companies have so long focused on exactly how some offering is presented that they may balk at the thought that in Web 2.0, they need to loosen their grip. There's always the worry of "what happens when someone does X or Y with it?" It's not quite so terrible.
This is actually quite related to SOA terms. Essentially, what you establish is a service-level agreement and a level of trust in your users and customers. The SLA defines your service endpoint, how it can be used, and how it will perform. You then trust the consumer of that service to make use of it according to the defined policies.
Once you use the word "policy" (however loosely), it seems to put the hawks more at ease. Obviously even "policy" is a vague and relative term. Watching Pirates of the Carribean (again) last night, they should think of it more as guildelines than as The (Pirate) Code. :)
Coincidentally, that is just where the fear stems from: that it would lead to "piracy", "stealing" or misuse of a service.
To paraphrase Princess Leia Organa to the Imperial Grand Moff:
"The more you tighten your grip, the more [they] will slip through your fingers."