You've already seen the photos that leaked of the purported back of the new iPhone, showing the new thinner design, but now it appears that there's video as well. Parts reseller ETrade Supply recently got their hands on these parts and posted a video to YouTube. Like the photos, the video compares the new back to the back of the current iPhone 4S. Nothing new, but it does give you a better idea of to what to expect. See for yourself below!
To sum up if you weren't paying attention, the videographer believes that the SIM card used for the next iPhone will be smaller than the current "MicroSIM" card that's now used in the iPhone 4 and 4S. But he's only basing this on the fact that the SIM card holder piece is smaller on the new back. A smaller SIM card standard is currently under development, but once again, Apple has not yet confirmed if the smaller cards will be utilized in their next iPhone.
4 more days till Apple's WWDC...