> How? Android is an open cross platform technology for building operating systems that are app-compatible with each other. How is that fragmenting? Situation:

> How? Android is an open cross platform technology for building operating systems that are app-compatible with each other. How is that fragmenting? Situation: there are two operating systems, A and B. Someone who wants to target all the devices on the market has to write two apps, one for A, one for B. This is fragmentation. Introducing a third operating system, C, means that someone who wants to target all the devices on the market now has to write three apps: one for A, one for B, one for C. This is, arguably, more fragmentation, since you have more apps to write. Does it really matter what A, B and C are actually called? Android is the latest entry to the mobile operating systems market (save for ghosts like WebOS). If anything, it was one of the driving factors of fragmentation. > But if you need to target all 800 devices that your customers use in the end, the iPhone turns out to be much different from an Android 4.0 device than Android 4.3. How? IIRC, there's nothing stopping you from developing with an older API if you want, just like on Android. Sure, you can't use the new and fancy features, just like you can't use them on Android, either...