[citation][nom]Tomfreak[/nom]it is about time they start support now, so it allow software developer to get some head start. Some high end phones has already come with 2GB of RAM, so it wont take long that we got 4GB models. I dont like the idea of we have 4-8GB of Ram when most developer still stuck in 32bit mode. This is what already happen in desktop.[/citation]
True, me too really. But think about it, most people aren't using more than 2GB RAM in their DESKTOPS, gamers for now don't really need more than 4GB, only people like you and me have 8GB+ in their rigs.
I've always found the need for >1GB RAM in mobile operating systems indicative of poor optimization than anything else. I mean, Win 7/8 need only 1GB min to run in 32-bit mode, and 2GB in 64-bit. And they're full blown operating systems.
Sure, i'd like to see 64-bit architectures ready for mobile, but at the same time if they offer no advantage at present (possible disadvantage?), i think they there's no point. By 2014/15 i think most of the world's PCs would have transitioned to Win7 at least and 64-bit desktop operating systems should be very common. Then mobile will make the transition too.
I don't remember Apple, Google or MS even talking about 64-bit mobile operating systems. I'm not too sure about the Win 8 Pro tablets, though. Makes more sense for MS, since they want consistency across devices. They might be the ones to eventually push the change to 64-bit. (Doesn't the Surface Pro already have 64-bit Win 8 Pro? it has 4GB RAM, after all...)