Yup, similar hacks as 32 bit windows has been doing for almost a decade to overcome the 4GB limit on 32 bit systems. Fortunately we've got a good 2.5 years before 32bit addressing becomes a real problem on the desktop, so MS, Intel, and Apple have time to get their problems sorted out.
Also, about 64 bit PS: PS can't even address >2GB of ram (its horrid memory management is a relec of the early 90s). Don't expect a 64 bit version thats actually 64 bit unless they get around to rewriting the app from scratch.
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