Does anyone have any info about version 4? I found the latest driver here: ftp://ftp.linksys.com/international/drivers/WUSB54Gv4_DRUT.zip Any idea what the tail "DRUT" of the zipfile stands for? It is dated Nov 6, but contains the current/latest release drivers for version 1 and 2 as well. Version 4 appears to be using a Ralink chipset and driver. Version 1 and 2 are based on PRISM chipsets.