Not too long ago, I had some Microsoft employees evading all questions on Indigo. Now they just published the Conference Tracks and Breakout Sessions for the PDC and the word “Indigo” is all over it. I am psyched to find out what it is...
Trying to guess from the list of sessions, it could be something that Hailstorm was supposed to be, now with all the WSA (aka GXA) features added. If you look at:
"Indigo": Building Secure Distributed Applications with Web Services
"Indigo": Programming Asynchronous Message-Oriented Web Services
Federating Identity and Authorization Across Organizations and Platforms
Programming "Indigo": Building Services and Connected Applications
What do you think it is?