Sorry, Miami. It seems Identity Festival's organizers had trouble putting together a lineup for the rescheduled September 30 date at Klipsch Amphitheater at Bayfront Park. The festival broke the news the permanent cancellation this evening via Facebook. However, organizers do hint at a return in 2012.
Here's the full statement:
The original Miami IDentity date on August 25 was forced to cancel due to Hurricane Irene and we made all attempts to reassemble the confirmed lineup from August 25 to September 30; however prior commitments from a large number of artists prohibit the September 30 date from moving forward. As a result the September 30 date will not happen. See you in 2012 barring no hurricanes. Refunds are available at point of purchase.