Wow, hate Apple much??? Actually, Apples market share rose from 41.4 to 42.4% from April to July this year, so not sure where you think it is dropping.
It is not dropping at all.
The world-wide numbers quoted by Gartner and other sites have an "Other" category that includes literally millions of phones that no one can even verify. It is actually the biggest piece of the pie, and has no basis in reality. The "analysts" mostly make up numbers to support whatever position they want to sell to their customer at that time.
Since the terminals will be NFC compliant, and some of the high-end Android phones have NFC, they will also work. This is not an Apple only solution.