Now that the September and October calendars are out I think we can safely extrapolate the MNSSHP dates for 2010. Disney always closes at 7 for parties. A quick look at the calendar and I think the dates will be:
September
3, 8, 10, 11, 14, 17, 21, 24, 28, 30
October
1, 3, 5, 7, 8, 11, 12...