iPhones having just 17% share of smart phone market worldwide, any company that wants to deploy iBeacon-like technology will look for Android customers first.
Oh... like developers do?
Don't forget... market share is just what was sold this past quarter. You're completely ignoring installed base.
There are a few hundred million iPhones out in the world right now.
What's that? There are over a billion Android phones? Well... how many of those phones are complete garbage? Or more to the point... how many of those billion Android phones have Bluetooth LE ?
Every iPhone since the 4S has Bluetooth LE... and that represents a TON of customers.
Don't get hypnotized by Android's huge market share numbers. It's been proven that iPhone customers spend more money. App developers obviously realize this... and retailers who install iBeacons will too.
So what if 5 Android phones get sold for every 1 iPhone? That doesn't matter when the 1 iPhone is actually more valuable.