Vodafone has unwittingly confirmed that the iPhone 5 will feature a nano-SIM, by showing one of the iPhone 5 SIMs it has stockpiled in a blog post.
Apple is notoriously secretive about keeping the details of its products under wraps until their grand unveiling - which is usually just a few weeks before the date they ship out. Vodafone has given us a glimpse of one of the iPhone 5's new features, its nano-SIM. Although long suspected to feature - as opposed to the micro-SIM used in the iPhone 4S - Apple hasn't yet confirmed this.
Vodafone posted a piccy of its iPhone 5 nano-SIM, spotted by CNET UK, before quickly ripping it off the net. The network has stockpiled 500,000 of the tiny things, ready for the day when the new iPhone hits the shops. It's expected to go on sale on 21 September.
A nano-SIM is 40% smaller than the iPhone micro-SIM, at just 12.3mm by 8.8mm. It's bad news if you're a frequent SIM-swapper as these things will be easier to lose than your TV's remote control. However, changes like these will let the iPhone 5 get even thinner than its predecessor. Rumours suggest it'll be less than 8mm thick, while the iPhone 4S is 9.3mm.
Apple CEO Tim Cook will take to the stage at the Yerba Buena centre in San Francisco at 6pm GMT this evening to unveil the iPhone 5. Aside from a larger 4in screen and smaller SIM, the new iPhone is expected to offer an improved camera, a more palm-friendly design and - possibly - NFC.
It's also possible that the iPhone 5 will become one of the UK's first 4G phones. Yesterday, Everything Everywhere (now known as simply EE) revealed its UK 4G plans, and hinted that the iPhone 5 may be among its handsets. All the phone carriers will be only too ready to tell all about their iPhone 5 plans once Apple has made its announcement, so if you're after the new iPhone, you won't have too long to wait to find out how much you'll have to pay.