I know there are already way too many threads about when the iMac will be here. There are quite a few already suggesting that the updated iMac will be released before 21st September, for example during the Sept. 12's event. However, I didn't see anyone discussing or mentioning the impact of the Back to School offer. I don't think new iMacs will show-up before September 21st. The back to school promo ends on that day and introducing new iMacs during this offer would be weird - I guess they would first want to get rid off the old iMacs to make as much profit on the old gear as possible and empty their stocks completely and only then introduce new iMacs; maybe even 2 weeks after September 21 (I think that's the deadline for returning purchased iMacs). (keep in mind that iPhone is not a part of the Back to School offer so it makes sense to introduce it before September 21st, I think even new iPad mini could be introduced next week, as it's a new product anyway).