Yes! Video is where I think 64 bit memory access has the potential to be
extremely useful. I'm not really convinced that it will be very helpful to
DAWs though - at least not until the entire app can be 64 bit so that speed
increases can be better realized. I don't really see the 2 Gigabyte limit we
currently have as much of a limit in realistic terms.
Video and audio have a lot in common - large file sizes, real time need for speed, real time operations.
I think 64 bit is faster in the sense that twice as much data can be processed at a time - but only in certain situations. I can see how a 64 bit graphics board would be able to grab chunks of pixels twice as fast, and process them twice as fast. However, that task is done by the graphics board not the OS.
So midi data could be grabbed twice as fast and sent out - but Midi is the least intensive aspect of the whole process. If a floating point number is now 40 bits of decimal and 24 bits of exponent as opposed to 20 and 12 (in 32 bit) I don't see a bit of increase.
I think that Logic does audio in floating point (you might recall some discussion from a few years ago about 900db of signalo to noise ratio).
By the way, the widgets are already getting old - like Expose. And I got a tip on another list to turn off Spotlight - because it does a lot of stuff on your disk and would interfer with getting the best processing power.
Another aside, I saw on the Apple store where they are selling new G5/dual 1.8 for $1499. Maybe Kamm will make the switch?