USB Key test
" Of our nine USB keys, six pass Vista's ReadyBoost test. Three don't. It's not really surprising that the lowball unit—the Patriot Xporter 2GB at $38—doesn't pass. But we were a bit surprised that Corsair's pricey Readout didn't either. The price/performance king is the Patriot Xporter XT, with 4GB of storage for about the same price as some 2GB units. "