Hi Barry,
Actually, I think the Miami DevCon is branded the Official DevCon by MS. Not that it matters.
Something you touched on which is an excellent point: What you come away with.
The Advisor DevCon written materials are more or less outlines of the presentations with handy white space to take notes. The Connections DevCons require speakers to submit a 10-20 page whitepaper on their topic that could standalone as an article. In fact, I would advise anyone who can't make NOLA DevCon to buy the proceedings.
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John Koziol, ex-MVP, ex-MS, ex-FoxTeam. Just call me "X"
"When the going gets weird, the weird turn pro" - Hunter Thompson (Gonzo) RIP 2/19/05