@patmoore: Whoops, that was my fault. Should have been "all day", which translates to "from fairly-early morning to mid-to-late-evening, plus some time for partying." For some reason there isn't a checkbox for that.
Mashup Camp is a great place for developers, designers, and anyone interested in Web 2.0 and beyond. I am speaking on Tuesday at 4pm and will include an extensive presentation on some of the latest in Data Portability too.
$35 for developers, $495/$995 for company representatives.