Unfortunately, the 64-bit processor/OS is still a fringe market.  There are more people moving to them lately, but not enough for most companies to make an effort - see most similar complaints about MacOS support.  It'll probably be a couple years before the conversion is enough to warrant such support.  That said, some companies aren't waiting and have already provided such support - like 3DSMax and Cinema 4D.

To emphasize the fringeness of 64-bit OSs at this time, not even Apple will bend to create a 64-bit version of QuickTime which, for its ubiquitousness, is appalling!

C makes it easy to shoot yourself in the foot. C++ makes it harder, but when you do, you blow your whole leg off.

 -- Bjarne Stroustrup

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