iPhone:Binary Type:Non-Fat Binary

I just uploaded my iPhone application into App Store. It is in Review process. By the way, when I see the details, it is showing binary as "Binary Type: Non-Fat Binary".

I just want to know: why is it show开发者_JAVA百科ing like this? What does they (Apple) mean that it is a Non-fat binary?

---

At WWDC, it was mentioned that you can build a binary which supports both the ARM v6 instruction set of the original models of iPhone and iPod touch, as well as one that uses the new ARM v7 instruction set of the iPhone 3G S and new iPod touch models. I believe that you can build a fat binary with support for both of these architectures and upload that to iTunes Connect. This message in the xcode-users mailing list seems to support that.

---

A fat binary is capable of running on both powerpc macs and intel macs. It is fat because it is two executables rolled into one. A non fat binary is only capable of running on one platform.