ARM's 64-bit A53 and A57 aren't available today, nor were they available last year when MS/Sony needed production ready silicon. These 64-bit ARM architectures are being tuned for the 20nm and 16nm/14nm-XM FinFET (20nm BEOL) processes. That's 1.5-3 years too late for Sony and MS.
I'm not disagreeing with you that ARM would have a very tempting solution in 1.5-3 years, I'm just stating that it's too late.
Yes, many games are cross platform, the problem with that argument is that they aren't the same games. Nobody is going to buy a smartphone/tablet game for $60, and as a result that market is at a stark contrast compared to the PC/console one.
So, yes, nVidia and Qualcomm and PowerVR will offer 1-2 TFLOPs solutions in 2-3 years, but AMD has offered that last year.
I'm not disagreeing with you that ARM would have a very tempting solution in 1.5-3 years, I'm just stating that it's too late.
Yes, many games are cross platform, the problem with that argument is that they aren't the same games. Nobody is going to buy a smartphone/tablet game for $60, and as a result that market is at a stark contrast compared to the PC/console one.
So, yes, nVidia and Qualcomm and PowerVR will offer 1-2 TFLOPs solutions in 2-3 years, but AMD has offered that last year.