History of Key Dates

iPhone Release Dates
10/14/2011 Friday 8:00 AM 4s Technical Specifications
06/24/2010 Thursday 7:00 AM 4 Technical Specifications
06/19/2009 Friday 7:00 AM 3Gs Technical Specifications
07/11/2008 Friday 8:00 AM 3G Technical Specifications
06/29/2007 Friday 6:00 PM Original Technical Specifications

iOS Release Dates
10/12/2011 Wednesday 5.0
06/21/2010 Monday 4.0
06/17/2009 Wednesday 3.0
07/11/2008 Friday 2.0
06/29/2007 Friday 1.0

iPhone Pre-Order & Reserve
10/07/2011 Friday 4s
06/15/2010 Tuesday 4

iPhone and iOS Release Announcements
10/04/2011 Tuesday (Let's Talk iPhone event) 4s
06/07/2010 Monday (WWDC) 4
06/08/2009 Monday (WWDC) 3Gs
06/09/2008 Monday (WWDC) 3G
01/09/2007 Tuesday (MacWorld) Original

WWDC Keynotes
06/06/2011 Monday
06/07/2010 Monday
06/08/2009 Monday
06/09/2008 Monday
06/11/2007 Monday

WWDC Scheduling Announcements
03/28/2011
05/24/2010
05/13/2009
05/13/2008
05/01/2007