I loved webos, but I've developed only for iphone/pad. Why? because I know this time next year there will still be iphones being sold that will run what I make

I loved webos, but I've developed only for iphone/pad. Why? because I know this time next year there will still be iphones being sold that will run what I make today. Can the android platform even say that with certainty? I'm still bummed. I really wanted webos to make it.