Attended a talk by Kevin Pilch-Bisson and Ryan Dawson on
Sneak peak at the new language features of .Net 4.0 and VS2010.
Ryan talked about IronPython and IronRuby which looks interesting.
Attended an all day OData event by Douglas Purdy and Jonathan Carter. The presentation was similar to the one in MIX10. Exciting technology, might be useful for XBRL data presentation.