On 03/11/2010 01:37 PM, Chris Messina wrote:

This isn't really considered to be a developer feature... it's just a
feed, after all. It's discoverable by standard feed autodiscovery, so
you don't need to know anything proprietary except the location of the
user's TypePad profile page in order to play.

I consider these feeds on TypePad to be an example of the progressive
enhancement that our spec affords; we just took a standard feed and
bolted some extra elements onto it. Right now users of these feeds just
see standard feed fare... but as soon as a good activity streams
consumer application comes along it'll magically become a better user
experience for users of that application without the user needing to
understand why it's better and without Six Apart needing to partner with
the company that produces the consumer application.

I hope in the coming months we can persuade more services to add these
extra bits to their feeds so that this spec moves from being a protocol
for integration between specific pairs of partners to the decentralized,
ad-hoc syndication system it was always intended to be.