It will matter for everyone pretty soon, and not just for addressing very large amounts of memory.
I'm not entirely convinced of this yet. I don't believe there's any registerable demand on the consumer side for 64-bit, not until 4GB of RAM becomes a limitation, and we're not at that point yet. That said, the 64-bit transition marches on, regardless, and I'll eventually upgrade (I'm waiting until Intel's Santa Rosa platform before grabbing a Core 2 Mac).
by Preston — Sep 16
I'm not entirely convinced of this yet. I don't believe there's any registerable demand on the consumer side for 64-bit, not until 4GB of RAM becomes a limitation, and we're not at that point yet. That said, the 64-bit transition marches on, regardless, and I'll eventually upgrade (I'm waiting until Intel's Santa Rosa platform before grabbing a Core 2 Mac).