Yeah, I'm curious about BlackBerry 10 but, I dont plan on going back BB anytime soon. If RIM is smart, they will make it capable of supporting that 64gb from day one. Doesn't matter that the card will be available right away or not, just that it will be able to use it. I would imagine that 64gb memory will be available for consumer purchase, sometime next year, anyway.
I don't know, I hope RIM understands that name recognition is no longer enough, if they want people to jump onto Blackberry 10 platform their hardware has to be at least on par with what is available on other platforms, and that means 1-2 GHZ dual or quad core processes, NFC, support for 64 GB data cards, 8 MP camera, front facing camera for video conferencing etc etc etc