In a moment of madness brought on by trying to make sense of 10 Mb of conference schedule for Evolution 2010, I extracted the text from the schedule and created a series of crude iCal files that I can add to my iCal calendar on my Mac (and hence sync to my iPhone). This way I can set reminders of specific talks I want to see.
I'm making these ical files available here, on the understanding that you can use them entirely at your own risk (some talks may be missing due to errors in parsing the file).