[anta40]

So which one has the biggest chance to be Android/iOS alternative?

Many many years ago, smarphone users had these choices:

Symbian, BlackBerry, Windows Mobile, PalmOS... what else?

[ajdude]

Windows phone still had the best ux of any smartphone, I just wish the ecosystem was there. To this day nothing even comes close to smart tiles.

[vladsanchez]

AMEN! I loved my Lumia and TRULY nothing beat the UX-ability of the Tiles system.