Firefox Mobile for Android is inevitable, it's just a question of when. While it's still vague, at least we know it's on the cards for late this year, with Mozilla's VP of mobiles telling TechRadar the hold up is due to different code:
"Android has been built on a Java platform, whereas [Firefix Mobile] is based on C and C++ code. Until last year when [the Open Handset Alliance] released the NDK (native development kit) which allowed native code as part of the app, it was simply impossible."

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