Yeah i thought of the same problem. I think what will happen is: many people do have a serious interest in promoting Bitcoin to the masses for everyday use. If that happens all the miners and traders now will
see their stockprice secured. Because of this there will hopefully be bounties for solutions to the problems you described, as it has happened so often in the past. Just imagine an early miner with his thousands of BTC
donating 1k BTC to the development of a more userfriendly application this problem would solve itself in an instant. I think the solution to this will come out of the interest of the many "stockholders" in the enterprise that Bitcoin has become, myself not excluded