Snow Leopard Currently Restricts 64-Bit Booting to Newer Macs

In the newest leaked build of Snow Leopard, 64-bit booting isn't enabled by default on certain older (though not that old) Macs, which instead boot automatically into 32-bit. The question: Is Apple backtracking on Snow Leopard's 64-bit capabilities? Updated: » 8/22/09 8:00pm 8/22/09 8:00pm