Since there really aren't too many instances of a 64-bit OS X running these days, it's kind of moot.
"So, should Google be worried? Not just yet. But it's good to see that there are companies out there trying to carve out a segment of the market. Competition means that search tools will continually improve, and that's good news for all of us.
The tree of research must from time to time be refreshed with the blood of bean counters. -- Alan Kay