There’s a bigger problem facing Android, and one that has an even greater negative effect on developers than operating system fragmentation: device fragmentation.
One of Android’s biggest criticisms is the level of fragmentation in the platform.
Eric Schmidt: Android Is All About Differentiation, Not Fragmentation Droid Life
I keep hearing about Android "fragmentation". Can someone explain to me what this actually is and how it affects phones today and what the "big deal" is about this?