Iphone Update Can U Jailbreak And Unlock An Iphone 3g 3.1.3 That Got Updated W/ Itunes On 5/25/2010? Help Needed Plz Asap?( 2 )i just bought an iphone 3g 16gb white yesterday and i plugged it in itunes and update. ... ShareWell Apple will today launch much awaited iOS 4 update for iPhones and iPad. The update which is landing ahead of the day iPhone will go into sale on June 24th has more than 100 new features compared to previous.