To be perfectly honest I think the majority of us have no real need for 64-bit ... well, not just yet.

Do you remember last years WWDC keynote? Steve Jobs had a 32 and 64-bit version of a demo app that he was showing off. Both were simultaneously loading in a 4GB photo of the Congress library. The 32-bit version had to swap out to disk and was getting bogged down; the 64-bit version didn't even blink. It did a filter in 28 seconds that took 84 seconds with the 32-bit version. This is a really good example of how 64-bit can help us, but to be honest, how many of us are going to be throwing around 4GB image files in the foreseeable future? For now, casual users aren't really hitting the limits of 32-bit, but in a couple of years I'm sure the landscape will change and we'll be doing just that, but for now 64-bit is really a requirement for the Pro-App/Scientific industry.

This is not to say that I don't want or need 64-bit right now -- I do :-)

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