Well, we have 3 races in the game, for those who do not know it yet: TEC, Advent and Vasari. And currently there are 3 mobile OSes of any significance: Windows Phone, Apple iOS and Google Android.
The question is: which race uses which OS, and why?
Advent = Apple iOS.
Advent are Apple fanboys. They are design freaks and consider themselves above the norm. Homo Sapiens Superior, if you will.
TEC = Google Android.
A hodgepodge incongruent mess which nevertheless may be able to deliver what you need. You can basically run it from a potato-powered arduino, and TEC like cheap stuff. No need to snobbing around 'superior design' and squandering resources just to have a shinier thingamajig to do just the same.
Vasari = Windows Phone.
Vasari are ruthlessly effective, just like Microsoft in its monopoly days, at least in the matter of killing the opposition. Who cares if they have some bluescreens here and there. Just like the vasari, Windows Phone is coming in small numbers, but has a not very humble goal of taking over the galaxy.