I think it'll get there faster on Android. Still, needs one additional gadget and some help from our agricultural scientist buddies.
You've seen those stakes you can drive into the ground around the walkway to your door - they're a dollar the Home Depot. For this, you need one of those that puts out the required sound. It's solar-powered and has a speaker of course.
Every weed has a killer set of sounds you can play - maybe they're low frequency, whatever, but, you play the sound continuously, and, after a couple of days, the weed is done.
So, you drive the stake in, near the weed, point your iPhone camera at the weed and, voila, it programs the stake to put out the right notes.
So simple and elegant. Too bad Steve is too dead to bring this one to life.
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