You don't "own" the hardware or the platform, you may create the code but you depend on the whims of others whether it is deployed and continues to work on such

You don't "own" the hardware or the platform, you may create the code but you depend on the whims of others whether it is deployed and continues to work on such devices. Best bet is to do mobile web development, most of the parts can be under your control and those that aren't (the phone) are beholding to web standards which can't change too radically.