10.2.1 & the Z30 blows the S3/S4 & 5C/5S out of the water!!!Check it out for yourself. Blackberry is back with a vengence!!! I was skeptical myself until I picked up new Z30 this week. I sold my Samsung - good riddance (it was a piece of garbage supported by disfunctional KIES 3 desktop software and a recent software upgrade that made it take 4.5 seconds to refresh the screen)!