There have been many iPhone 5-related leaks as of late, but one device we haven't heard much about is the rumored iPhone 4S, the cheaper version of the iPhone 4 that may be joining the iPhone 5 in launching this October. Today MacRumors broke that trend, posting some images of what it believes to be the casing that belongs to the iPhone 4S. As you can see in the photos, the iPhone 4S frame looks a lot like the plain ol' iPhone 4 at first glance. Upon closer inspection, though, things are a tad different.

The first big change in the iPhone 4S casing compared to the iPhone 4 casing is the placement of the antenna breaks. This iPhone 4S shows two antenna breaks at the bottom of the casing, while the iPhone 4 had two different break placements: the AT&T model had them along the lower and upper left side, while the Verizon version had both at the top. There also seems to be a SIM card slot on the casing photographed above, meaning we're looking at a device that supports GSM tech. Whether or not this will be a GSM/CDMA combo handset like the iPhone 5 is expected to be is still a mystery. Rounding out our look at the upper portion of the iPhone 4S casing, we've got the mute switch and volume keys on the same side, just like on the iPhone 4.

Moving to the bottom of the iPhone 4S casing, we can see that that there's no dedicated markings for a Home button like there is on the iPhone 4 casing. Whether this means that Apple's planning to tweak the Home button on the iPhone 4S or not remains to be seen, but it's a possibility.

After seeing this alleged casing for a iPhone 4S appear, we're left to wonder else changes Apple may have in store for its new, cheap handset. Less storage? Keeping the display at 3.5-inches and bumping up the screen size on the iPhone 5? Replacing the computer chips inside the phone with tasty potato chips? All plausible ideas (except for maybe that last one). Thankfully we're not too far off from getting all the answers. Stay tuned, friends!

Via Today's iPhone, MacRumors