According to new rumors, Apple’s next-generation mobile operating system, iOS 5 will not run on the iPhone 3GS.

When Eldar Murtazin, a Mobile-Review.com editor, tweeted “Just one comment. Apple iPhone 3GS won’t be upgradable to iOS 5.x. But iPhone4 will”, Macstories discovered the twitter post and it started to look back into the records. They found that when Apple released iOS 4 last summer, the company made sure it could run on the iPhone 3G, 3GS and iPhone 4. But when the first beta of iOS 4.3 was launched, the Cupertino company dropped support for the third- and second-generation iPhone and iPod touch.

This means that you can purchase a 3GS model for only $49, but you might be out of luck when the iOS 5 is launched – and that will be ‘real soon now’.

What needs to be taken into consideration is that Murtazin tweeted incorrectly last December that Apple would add a USB port to its next-generation iPad – but when the second-generation tablet was launched in March, it still featured the same 30-pin iPod dock connector as its primary input method. However, if we look back over the years and analyze Apple’s moves, Murtazin could well be right this time!