I loved this backgrounder on service contracts in Indigo posted by the man himself – Don Box. I’m really excited about Indigo, its on of the pillars of longhorn that less than its fair share of press, and I think thats because it is content to silently deliver on the promise of a web-services stack baked right into the platform.
Indigo will allow the contract first guys to take the morts of the world with them when designing message exchange patterns and not have to thunk the design down to an RPC mechanism because thats all the current suite of tools allowed.
Nice.