Another day, another piece of information from the latest beta of iOS 6.

After having played with the latest beta of iOS, 9to5Mac decided to test out the rumored next-generation iPhone resolution of 640 x 1136 in the iOS Simulator, a tool that’s included with iOS’ development tools. The resolution, when tested with iOS 5.1, only stretched the areas between rows, leaving four rows of icons and the dock.

However, when the same resolution was tested with the latest beta of iOS 6, the Simulator added another row – bringing the total to five rows of icons, not including the dock.

9to5Mac didn’t stop its testing there, however. Other resolutions were tested to see if the Simulator would display a perfect home screen like the one in the picture above, but none of them did.

Perhaps even more interesting is that the simulator will not correctly display five rows of icons at resolutions other than 640 x 1136. At other resolutions, the icons will scale to an iPad-like home screen layout, not at the proportions and spacing of the current iPhone and iPod touch display. This may just add another layer of proof that the next-gen iPhone display will come in at a resolution of 640 x 1136.

It should be noted that this resolution would only make the iPhone’s screen taller when held in a portrait orientation, not wider.

As 9to5Mac points out, this isn’t a completely definitive piece of news. Apple obviously tests a number of prototypes, so while this is certainly one of them, it might not end up being the new iPhone we see in the fall.

[9to5Mac via MacRumors]