I attended the Minnesota Developer's Conference yesterday, and it was pretty slick. The affair started with a keynote by an employee from 3M, where they discussed the latest and greatest efforts they had made with RFID, integrating it into a Microsoft architecture with Biztalk, SQL Server, etc. They even made mention of using the cheap RFID tag, now < $.05 to buy, on miners' helmets, masks, and even buried gas and power lines! Imagine how cool that would be to read an RF tag from above ground, and get info like what type of line is buried and its maintenance history. Rad.
There were four tracks: desktop, web, Sharepoint, and TFS. I stuck with the app track the whole time, hearing talks on LINQ (cool), WCF+WF in .Net 3.5, and CardSpace. Pretty cool technology, I wonder what the other groups did!