We've rescheduled BriForum 2008 Chicago so that it doesn't conflict with the MVP conference (or hopefully any conference). Chicago is a busy city, so we didn't have too many choices for dates. We decided for a June date which may give us the bonus of nicer weather in Chicago. Right now there are no conflicts that I know of, although it doesn't appear that Microsoft TechEd has been scheduled yet, and that usually takes place around this time. But even if TechEd conflicts with BriForum, I think that will be okay.
We're still working on wrapping up the last bits from BriForum 2007 Amsterdam last week. We'll announce more details of BriForum 2008 Chicago soon, but probably won't launch the call for papers and everything until January.