Quote - "I would guess that most non infinite, xstream windows users are on 32, not 64, and so to them those fixes are useless."

I see. But I wouldn't be so sure that the percentage of 64 bit users is as low as 10%. In the forums, it's notorious an increasingly big number of posters with 64 bit systems. In the market in general, the shift to 64 bit is tremendous. In the link below, you can see that already in June, 20% of all new Vista users had 64 bit systems. And that was more than 6 months ago, I'd bet now it's much more. Of course, there's still a big installed base of 32 bit systems but that is very rapidly decreasing.

http://windowsteamblog.com/blogs/windowsvista/archive/2008/07/30/windows-vista-64-bit-today.aspx