It’s been almost confirmed* that Singtel will start selling the iPhone 5 together with the first groups of countries before the middle of September 2012.
As with the iPhone 4S, Singapore (and hence Singtel) has always been among the first few countries to get the latest Apple products.
The current model of the iPhone was released on Oct 28 last year without much surprise. This year’s iPhone 5 launch date will be likewise unsurprising.
*from unofficial sources