For those following the Marja’ Sayyid Fadlullah (Shi’i), it has been announced that Eid is tomorrow, September 30, making Ramadan 29 days since his followers started on September 1. SEE: http://english.bayynat.org.lb/news/bayan_25092008_1_1.htm
The majority of mosques whether starting the fast on September 1 or September 2 will have Eid on October 1; those who started on September 2 would have fasted 29 days. Those who started Ramadan on September 1 are obligated to break fasting on October 1 if not on September 30 because Ramadan cannot be 31 days.
According to Zaytuna, there is a decent chance that Eid will be on October 2, but this only applies to those who started fasting on September 2. SEE: www.cresecentwatch.org