Apple's new iPhone 5 is rumored to be released on Sept. 21, but the smartphone's nano SIM cards have already been shipped to T-Mobile, according to some reports. The new nano SIM is another innovation by Apple, with the iPhone 5 being the only phone to feature the new card.

Telekom, the company that holds the cellphone provider T-Mobile, has been shipped these new nano SIM cards for the iPhone 5, and iFun has released a review of one. The iPhone 5 SIM cards came enclosed with a message, which 9to5Mac translated from iFun.

"Dear partners," the message reads. "You will receive today a new generation of SIM cards for the latest generation of smartphones that come in the near future on the market. Sort your SIM card please first not in their cards in hand and give it not out to customers. We will inform you shortly about how to proceed."

There has been some controversy over the decision to implement the new nano SIM card in the specs of the iPhone 5. Apparently Apple and Nokia have been at odds with one another over the use of the cards since before May, reports by The Verge.

The Verge claims that Nokia felt that Apple's nano SIM design for the iPhone 5 violated guidelines claiming that the shape of the SIM shouldn't be similar to the shape of larger SIM cards to prevent users from accidently attempting to insert the cards into SIM slots they don't fit in. In response, Apple added a new design to the iPhone 5 SIM - a small addition of plastic, making the card too long to insert into other SIM sockets.

This adds to the long list of iPhone 5 rumors that have been confirmed concerning the smartphone's specs. With the speculated announcement and release date coming on Sept. 12 and 21 respectively, the Mac community is building with anticipation for the new iPhone.

This is the latest release of information about what will come inside the iPhone 5. SmartPhone Medic posted a video to YouTube of what they claimed were the deconstructed parts of the new iPhone.

The video shows various insides of the potential smartphone, but there is no confirmation that a genuine iPhone was used. The video compares the alleged iPhone 5 with its predecessor, the iPhone 4S as well as its competitor, the Samsung Galaxy S3.

Many of the parts were the same between the iPhone 5 and 4s, but there were some apparent difference. Most noteworthy was the docking port has been altered, which may result in Apple accessories not being compatable with the new phone.

Smaller changes like moving the headphone jack from the top of the phone to the bottom have also been made. The screen of the phone will also be larger, among other small changes.