Originally Posted by newfiejudd
I have been testing Vista for a long time now also. (Thanks to The Scottsman) I find readyBoost does improve your overall system performance. The trick I found was to make sure you have a flash media storage that will read and write data fast enough. ReadyBoost will tell you if your Flash Memory isn't up to par. I am using a 2 gig SD ultra High Speed.
It may be worth noting that current flash memory has a limited number of write cycles, so if you use a memory stick for your paging file, you'll see it wear down pretty quickly if you make signifcant use of the paging file.
Personally, I have no clue what the supposed benefit of such a usage of flash memory could be, given the fact that most flash memory, once you figure in going through the USB bus, really offers no performance benefit, at best, over your hard drive. As far as I can tell, unless someone knows more about this, readyBoost seems to be an entirely useless gimmick.