Manufacturers of the Apple iPhone are ready to start making the yet-to-be-announced iPhone 4S replacement, according to Apple news website 9to5mac.com
9to5 Mac stated, "We received word from a reliable source at Foxconn in China that the iPhone 5, as it is currently being called, is now gearing for production." - whilst indicating that a summer launch is likely.
"The source said various sample devices are also floating around (they vary slightly from one another), so it is impossible to tell which one will be the final", added the site.
These phones all have some things in common, which are a 4+ inch display (made by LG on at least one of them), where there's no teardrop-shaped devices; these were rumoured in the lead up to the iPhone 4S.
The samples so far have been symmetrical in thickness (also longer/wider), neither of the sample devices have the iPhone 4/4S form factor and neither of the devices are the final versions, notes the Apple website.
9to5 Mac also mentioned that it is important to remember that iPhone 4S production did not gear up until late spring of last year, so if the iPhone 5 follows the same pattern Apple could plan a summer/WWDC launch.