Apple's upcoming iPhone 5 is reportedly not a huge update over the current flagship model, the iPhone 4. This is according to a report on tech website Digi Times. Sources revealed that notebook maker Pegatron Technology is estimated to have landed a deal for 15 million iPhone 5s and that units will start shipping in September.

While sources told the site that the iPhone 5 won't be a major update from the iPhone 4 (something that might disappoint technology fans), other stories suggest that the new phone will ship with the same A5 processor in the iPad 2 and include a snazzy new 8mp camera - which is a significant upgrade over the current model.

Would it be a wise move for Apple to release a new iPhone that doesn't offer a significant update over the existing model? Would what sounds like an iPhone 4s be enough for the company to hold onto its smartphone dominance?