Your banking app is not going to work on Linux either. If Android is fundamentally broken then fork it. My point is, it seem smarter/easier to take Android and make it more linux-like than to take Linux and make it more Android-like. All the work is already done and paid for. Sailing with the wind vs sailing against the wind.
edit : Unless the goal is also to benefit the linux desktop ecosystem (the whole convergence meme)
edit : Unless the goal is also to benefit the linux desktop ecosystem (the whole convergence meme)