I understand your concern, and we are working very hard to get the Microsoft sessions online. Microsoft is still finalizing their sessions before submitting to us so we can post them. They were supposed to be ready last month.
We currently have the BI sessions confirmed but are waiting for the app dev and dba sessions from Microsoft before we can finalize where all of the MS sessions will fit on the schedule. We've been promised to get the remaining sessions very soon. Sorry for the delay.