Gene Munster, an analyst from Piper Jaffray noted that on average 79 days pass between an update in the iOS and the announcement of the iPhone hardware, which suggests that the iPhone 5 launch will be delayed until September; Apple Insider reports.
He added that this would mean, based on the expected iOS release at Apple's WWDC (starting June 6th), that the iPhone 5 announcement will be around August 24th. Furthermore, normally 99 days pass between the software announcement and the company actually shipping the hardware. Following the logic of this principle, the report suggests, the fifth-generation iPhone could hit the stores around September 13th.
This would mark a change in Apple’s release schedule, because the company released its iPhone, iPhone 3GS and iPhone 4 in the previous quarter in years gone by.
The analyst thinks that the delay could be due to some software features which have not been completed yet. Munster added that the earthquake and the tsunami which hit Japan could also be to blame since many components are manufactured in Japan.
According to Piper Jaffray estimations, Apple could sell 16 million iPhones in the June quarter and another 21 million in the September quarter, and even a later than usual launch would not affect these figures. Other hypotheses suggest that the iPhone could incorporate a 4-inch screen as well as a 4G connection by 2012.