I said theoretical in the sense that yes it has the capability to do all that you said, but using the applications most people in the digital imaging/photography world use do not show there to be an advantage in that direction. Of course if coded specifically for the G4 then there would be big advantages, but that can really be said of just about any CPU.
Take Adobe for example, with support for multiple cores and now adding support in CS4 for GPU processing (which is an excellent tool for array processing obviously) there are a lot of exciting directions for the biggest and most popular software packages for most "consumer" (in other words not scientific, etc) imaging applications to really get some major boosts in speed. I don't have CS4 yet, but I'm waffling on picking it up soon.
No kidding, I'm watching and waiting for SSDs to offer better capacity/$ and for the higher performance SSDs with more access channels to come down in price. The system drive on my desktop would surely get swapped out for one of those when the time comes
I could take advantage of even the current crop of SSDs with their fewer access channels if I used them for image storage, particularly for images I'm working on in the immediate future since even if I can't access multiple pieces as fast as with an unfragmented HD, the transfer rate for a single file (which is what I'd care about) is much faster than the HDs are without getting in to SAS drives.
Yes indeed. The problem with many of the more affordable SSDs seems to be the controller. Not enough channels perhaps. Intel has some SSDs that get around that and perhaps others, they're just much more expensive.
I won't mourn the death of ye olde spinning platter for most things, although for cheap capacity until SSDs surpass them I think I'll continue to use multiple hard drives as backup media.