In my speculative piece regarding the iPad Mini, I thought Apple would roll it out on October 26:
I think it’s scheduled to be announced at an event on October 17, with preorders starting on October 19, and shipping starting on October 26.
But waiting until October 26 to begin preorders doesn’t sound right either. Their earnings call is the day prior, and they want something to talk about. Maybe they’ll keep preorders short, by beginning them after the unveiling, and they’ll begin shipping the new products on October 26.